Metal Siding Cost: Price Per Square Foot Breakdown

Framer in a hard hat working on top of a wood stud wall

What drives metal siding cost per square foot?

Metal siding cost per square foot is driven by panel profile and gauge, trim and flashing quantity, substrate and furring, waste factor, and the labor hours each crew needs per square. Steel mill pricing moves the material line, while local wage data sets the installation line.

Metal Siding Cost by Material Type and Profile

Metal siding cost per square foot is set by four inputs before anyone touches a wall: the alloy, the panel gauge, the coating system, and the profile's formed shape. A 29-gauge painted steel panel and a 24-gauge standing seam panel can cover the same 100 sq ft and land at very different unit rates, because the heavier coil costs more per pound and the forming line runs slower. When you send drawings for a siding estimates review, the takeoff carries each of those four inputs as a separate line so the panel rate can be audited against the supplier quote.

Profile geometry matters as much as metal thickness. A corrugated panel draws more coil per square foot of wall than a flat pan because the ribs add developed width, and a shingle-look panel adds a stamping step that shows up in the piece price. Waste factor follows the profile too: a 36-inch corrugated panel cut around a window bank leaves less usable offcut than a 12-inch wainscot board, so typical waste runs higher on narrow profiles. On a multi-building job, the same logic is what drives how to estimate construction projects as a general contractor: every profile and gauge stays a separate line rather than a blended wall average.

Profile and material families that set the baseline panel rate (illustrative structure, not market prices)
Family or profile	Typical gauge or thickness	Fastening	Where it usually lands on the rate scale
Corrugated steel	29 ga painted	Exposed fastener	Lowest panel rate
Board-and-batten steel	29–26 ga	Exposed fastener	Low to mid
Shingle-look steel	26–24 ga	Exposed fastener	Mid
Standing seam steel	24 ga	Concealed clip	Highest wall rate
Aluminum (any profile)	0.032–0.040 in	Exposed or clip	Mid to high
Corten (weathering)	22–18 ga	Exposed fastener	Premium

Steel vs aluminum vs corten

Steel is the volume choice for walls and the baseline for most metal siding prices: 29-gauge painted steel is the common residential panel, and 26-gauge or 24-gauge coil is specified where wind uplift or hail exposure is higher. Aluminum costs more per square foot of coverage at equal thickness but never rusts, which is why coastal specs often carry it. Corten (weathering steel) is a premium finish line item — the alloy itself is not expensive, but the controlled rust cycle, the staining risk to adjacent concrete and the limited panel profiles push the installed number up. Each family gets its own line item in a bid package, never a blended average.

Corrugated, standing seam, board-and-batten, shingle-look panels

Corrugated metal siding cost sits at the low end of the profile range: exposed fasteners, simple roll forming, and short panel lengths that ship flat. Standing seam is the high end for walls because the concealed clip system, the pan width and the seaming labor all add cost, and the same profile on a roof carries a pitch and fall-protection premium. Board-and-batten panels imitate vertical board siding with a formed batten every 12 or 16 inches, and shingle-look panels press a stamped texture that raises the per-piece price. Wainscot applications — a 36-inch band around a commercial base — use the same panels at a smaller quantity, so the fixed setup cost spreads over fewer square feet and the unit rate rises. A quantity takeoff that lists panels by profile and length keeps those differences visible instead of averaging them away, and it is the same discipline that keeps the metal siding cost on a wall assembly comparable from one bid to the next.

How Is Metal Siding Cost Calculated Per Square Foot?

The arithmetic chain runs from gross wall area to panel count to trim to fasteners, and every multiplier is visible on the sheet. Steel siding cost per square foot starts with net wall area: measure each elevation, subtract openings larger than 20 sq ft, and add the gable end triangle at half its base times height. The result is divided by 100 to get squares, the unit the trade actually buys and crews actually schedule.

The square (100 sq ft) convention

A square is 100 sq ft of finished wall, and panel, trim and labor rates are often quoted per square so the bid package lines up with how crews are priced. Convert carefully: a 1,200 sq ft wall is 12 squares, and a 36-inch wainscot band 100 ft long is 300 sq ft, or 3 squares. Keep the gross-to-net deduction on its own line so a reviewer can see what was removed for windows and doors.

Coverage width vs panel width

Panel width is the flat coil width; coverage width is what remains after the overlap or the seam. A nominal 36-inch corrugated panel with a 1-inch overlap covers 35 inches, so the number of panels is net wall area divided by coverage width times panel length, rounded up per run. Using nominal width instead of coverage width understates the panel count by roughly 3 percent on that profile, and the error compounds on long walls.

Trim, fasteners and waste

Trim is measured in linear feet, not square feet: inside and outside corners, J-channel, gable trim, base trim, and the soffit and fascia transition each get a count. Fastener count follows panel area and framing spacing — exposed-fastener panels typically take screws at every rib on each girt plus one per rib at panel ends, and a clip system uses one clip per panel per girt line. Waste factor is applied to panels (typical 5 to 10 percent for simple rectangles, more for gable ends and heavy penetration) and to trim (typical 5 percent). Metal siding cost per square is then panel cost plus trim cost plus fasteners plus labor, divided by net squares. The same panel-and-girt logic carries over to pre-engineered structures, where metal building and pemb estimating prices the wall system against the frame rather than a stud wall. A construction quantity takeoff records each of those quantities separately so the multiplier is never buried in a lump sum.

Worked Example: Metal Siding Cost for a 1,200 Sq Ft Wall

This example is illustrative — the unit rates are assumed for arithmetic, not market data. The wall is 1,200 sq ft net after openings, one story, 10 ft tall, with four outside corners, a 40 ft gable end, and trim at base, top and soffit and fascia. Panel gauge is assumed at 29-gauge painted steel in a 36-inch corrugated profile with a 35-inch coverage width, so the metal siding cost below can be checked line by line.

Illustrative traceable estimate for 1,200 sq ft of 29-gauge corrugated wall
Line item	Quantity	Unit	Rate	Extended
Panel (with 8% waste)	1,296	sq ft	$2.20	$2,851.20
Trim (with 5% waste)	336	lf	$4.50	$1,512.00
Fasteners	288	screws	$0.18	$51.84
Labor	10.8	crew hr	$62.00	$669.60
Subtotal				$5,084.64
Contingency (10%)				$508.46
Total	1,200	sq ft	$4.66	$5,593.10

Square-foot budget calculator

Building area (sq ft)

Your base hard cost ($/sq ft)

Soft costs (%)

Contingency (%)

Escalation to midpoint (%)

Hard cost: $444,000
Soft costs: $53,280
Contingency: $49,728
Escalation: $21,880
Budget total: $568,888
All-in per sq ft: $237

Enter your own base rate from a recent bid, cost book or estimator. The default values are placeholders for the math, not market prices.

Stated assumptions and unit rates

Assumed panel rate: $2.20 per sq ft of panel. Assumed trim rate: $4.50 per linear foot. Assumed fastener cost: $0.18 per screw, 24 screws per square. Assumed labor: 0.9 crew hours per square at a loaded $62.00 per hour. Assumed waste: 8 percent on panels and 5 percent on trim. Contingency: 10 percent on the subtotal. These are illustrative inputs chosen so each multiplication can be checked by hand.

Quantity × rate arithmetic

Panels: 1,200 sq ft × 1.08 waste = 1,296 sq ft; 1,296 × $2.20 = $2,851.20. Panel count check: 120 ft of wall × 12 ÷ 35 in. coverage = 41.14, so 42 runs at 10 ft, or 420 linear ft of panel. Trim: four corners at 10 ft = 40 lf, base 120 lf, top 120 lf, gable 40 lf = 320 lf; 320 × 1.05 = 336 lf; 336 × $4.50 = $1,512.00. Fasteners: 12 squares × 24 = 288 screws; 288 × $0.18 = $51.84. Labor: 12 squares × 0.9 hr = 10.8 hr; 10.8 × $62.00 = $669.60. Subtotal = $2,851.20 + $1,512.00 + $51.84 + $669.60 = $5,084.64. Contingency at 10 percent = $508.46. Total = $5,593.10, or $4.66 per sq ft on 1,200 sq ft.

What the total excludes · the calculator below

Excluded: scaffolding and mobilization, housewrap and furring strips, substrate repair, permit fees, sales tax, and any change order for concealed damage found after the crew opens the wall. A screw gun, a shear and a brake are assumed on site. Standing seam metal siding price would run higher because the clip system and seaming labor are not in this corrugated line. For a full-building budget, the calculator below takes your building area, your own base hard cost per sq ft, soft-cost percent, contingency percent and escalation percent, and returns hard cost, soft costs, contingency, escalation, budget total and all-in cost per sq ft; it holds no prices of its own. Metal siding prices move with coil: the steel mill products index in the chart below shows the direction, and a residential construction cost estimate ties the siding line back into the whole house. To put your own wall on a sheet, send your plans.

What Drives Metal Siding Cost Up or Down?

Two houses with the same wall area can land far apart in metal siding cost, and the estimate should show why. The drivers below are the ones that move the line items most: geometry, access, what sits behind the panel, panel complexity, coating warranty length, and the number of openings. Each one is measurable from the drawings, so each one belongs in the takeoff rather than in a contingency lump.

Panel complexity is the quiet variable. A standing seam roof-to-wall transition with a shop-fabricated gable trim costs more per linear foot than a straight run of corrugated wall panel, because the trim is cut, bent and fitted by hand. Openings add four corner trims, a head flashing and a sill piece each, plus cut labor, so a wall with six windows carries far more trim than the same square footage with none.

Wall height, access and scaffolding

Wall height changes the access method, and access is a separate line item from the panel. Single-story walls are usually set from ladders or a small lift, while two-story gable ends need scaffolding or a boom lift rented by the day or week. Scaffolding cost divides across the crew days it serves, so a short wall run on a tall wall carries a higher access cost per square foot than a long run at the same height. Above walking height, OSHA fall protection planning adds setup time that shows up in the metal siding labor cost per square foot, not in the material price. Ask how access is priced before comparing bids.

Substrate condition and removal of old siding

Metal panels are only as flat as what they fasten to. Rotted sheathing, out-of-plane framing or missing housewrap has to be corrected before panels go on, and that repair is a carpentry line item, not a siding one. Tear-off of existing siding adds disposal, dumpster rental and labor, and older homes may carry a second layer that doubles the volume. Furring strips over masonry or uneven sheathing add material and fasteners per square foot of wall. On a renovation, the substrate inspection is the item most often left out of a first-pass estimate and most often added by change order; the same logic applies when you work out how to calculate waterproofing quantity behind the panels.

Region, season and crew availability

The same panel installed in two markets carries different labor because wage rates differ. Sheet metal worker and roofer wage levels vary by metro, and the BLS wage data behind our pricing shows that spread; the charts on this page carry the current figures. Season matters too: winter installs in cold climates slow sealant cure and can require heated storage for panels, and peak-season crews book out earlier. A crew that must travel adds mobilization, which is priced per trip rather than per square foot. For a bid-ready breakdown of these drivers, see our siding estimating services.

Metal Siding Cost vs Other Exterior Finishes

Comparing metal siding cost against vinyl, fiber cement or stucco works only when every option is priced on the same scope: same wall area, same removal, same trim, same access. A metal siding cost calculator fed only panel price will understate the installed number, because trim, fasteners, housewrap and labor are separate line items. Run each finish through the same takeoff and the differences become visible in the subtotals, not in a brochure. Keeping the four options on one worksheet is the same discipline we apply to trade estimates for exterior scopes.

Material behavior differs in ways that change the labor line. A corrugated panel is light and goes up fast with a screw gun, while fiber cement is heavy and slower to handle, and stucco needs scratch and brown coats with cure time between them. Housewrap and flashing details are common to all four, so they cancel out of a fair comparison. The table below keeps the comparison relative and names the line items that actually separate the options.

Relative installed cost and maintenance profile by exterior finish (comparative, not national averages)
Finish	Relative material cost	Relative labor intensity	Typical maintenance cycle	Key line items that drive the number
Vinyl	Lowest	Low	Wash; occasional panel replacement	Panels, J-channel, corner posts, housewrap
Painted steel or aluminum	Moderate	Low to moderate	Wash; inspect fasteners and sealant	Panels, trim and flashing, fasteners, gasketed washers
Fiber cement	Moderate to high	Moderate to high	Repaint on a cycle	Boards, trim, fasteners, cutting and dust control
Stucco (three-coat)	Moderate	High	Crack repair and resealing	Scratch and brown coats, lath, scaffold time, cure schedule

Vinyl and fiber cement comparison

Vinyl is the lowest installed cost of the four in most markets, largely because carpenter labor at the panel stage is quick and the material is inexpensive. Fiber cement sits above vinyl on material and on handling labor, since boards are heavier and need dedicated cutting tools and dust control. Metal sits between them on material but can beat both on speed when walls are simple and access is good. Stucco is a multi-coat system whose cost is driven by scaffold time and cure schedule rather than by panel price. Price all four with the same waste factor and the same trim scope before you compare.

Life-cycle and maintenance differences

Maintenance separates the finishes more than first cost does. Vinyl can crack and fade, fiber cement needs repainting on a cycle, and stucco needs crack repair and resealing at penetrations. Painted metal holds its finish for the length of the paint finish warranty, which is a stated term you can read and compare; that warranty length is a pricing input, since longer warranties usually mean a better coating system at a higher panel price. Fastener washers on exposed-fastener panels are a wear point to inspect. For the interior side of the wall assembly, our guide to vapor barrier placement explains why the substrate detail matters as much as the cladding.

Where Metal Siding Estimates Go Wrong

Most bad siding numbers are not wrong on the panel price; they are wrong on what surrounds the panel. A takeoff that counts wall area and stops there will miss trim, fasteners, sealant and access, and the gap shows up as a change order. The errors below recur across bids, and each one is preventable with a line-item takeoff tied to the elevations.

A metal siding estimate should be traceable to a measurement rule on the drawings. When each quantity carries its unit, its rule and its source page, a reviewer can check the arithmetic instead of trusting the total. That is the standard our quantity takeoff work follows, and it is what makes a bid comparable to the next one.

Under-counting trim and flashing

Trim is priced by the linear foot and is easy to undercount. Every outside corner, inside corner, opening head, sill, jamb and gable rake needs a piece, plus base trim and any wainscot cap. A wall with several windows can carry more trim length than panel area in labor terms. Aluminum siding cost comparisons often fail here too, because aluminum trim profiles differ from steel and the two cannot be swapped without changing the line item. Count trim from the elevations, not from a rule of thumb.

Ignoring panel orientation and cut waste

Panels run vertically or horizontally, and the orientation sets the waste factor. Vertical runs on a gable end produce angled cuts at the rake, and horizontal runs produce cuts at every opening and corner. Exposed fastener panels need fasteners at a stated spacing along each purlin or stud, so fastener count follows panel coverage width and wall framing spacing, not wall area alone. Furring strips change that spacing and add a line. Roofer labor rates applied to wall work, or the reverse, distort the labor subtotal. For projects where the wall is part of a larger steel structure, our metal building and pemb estimating team prices the envelope and the frame together.

Getting a Traceable Metal Siding Estimate

A traceable estimate starts with a written measurement rule, not a price. On a metal siding takeoff we state the rule at the top of the sheet: wall area is measured on the exterior face from finished grade to the eave line, gable ends are taken as one-half base times height, and openings over 10 sq ft are deducted net of trim. Anyone holding the plans can re-measure a line and land on the same quantity.

Panel coverage width is the line where estimates usually drift. A 36 in. ribbed panel with a 1 in. lap covers 35 in., so the panel count for a wall is the run divided by the coverage width, rounded up per elevation so cut-offs are not carried around a corner. We show panels, screws per square, trim and flashing by linear foot (corner, J-channel, drip edge, sill), and closure strips as separate line items with their own units. The metal siding cost then splits cleanly into material, labor hours and equipment instead of one blended number.

Labor is where the arithmetic earns its keep. The calculator below takes a base wage, a burden percentage, the share of hours worked at overtime, crew size and hours, and returns the loaded rate, the blended rate with overtime, total labor hours and crew labor cost. Run it once for sheet metal workers setting panels and once for carpenter labor on furring and substrate, because the two trades carry different wage rates and rarely work the same hours. A crew day is eight hours before overtime; anything past that is priced at the blended rate, not the straight-time rate.

Our siding estimating services team issues the Excel workbook with formulas visible, the PDF summary, and marked-up drawing pages showing where each quantity was taken. Steel panels, aluminum trim and vinyl accessories move on different price indexes, so we escalate each material line by its own published series rather than one blanket factor. Where a metal siding vs vinyl siding cost comparison enters a bid package, the two are built on the same wall areas and the same opening deductions. For projects with structural panels, purlins or girts, the metal building and pemb estimating group applies the same documentation standard.

Loaded labor rate calculator

Base wage ($/hr)

Labor burden (% of wage)

Hours at overtime (%)

Crew size

Duration (hours)

Loaded rate: $31/hr
Blended with overtime: $32/hr
Labor hours: 320
Crew labor cost: $10,279

Burden covers payroll taxes, workers’ compensation, insurance and benefits; it varies by state, trade and company. Overtime is priced at time and a half.

Frequently Asked Questions

How much does metal siding cost per square foot installed?

Installed metal siding cost per square foot is built from four lines: panel material at the quoted gauge and finish, trim and flashing by linear foot, accessory layers such as housewrap and furring, and labor priced by the square (100 sq ft) or by crew day. Panel profile, substrate condition and wall height move each line. We show the unit and arithmetic for every one.

Is metal siding cheaper than vinyl siding?

Usually not on first cost. Steel and aluminum panels carry a higher material price per square foot than vinyl, and the trim package is larger because metal needs flashing at every opening and corner. Vinyl's material prices track plastic construction product indexes, while steel panels follow steel mill product indexes, so the gap widens or narrows with those two series. Compare installed totals, not panel price alone.

How long does metal siding last compared to other siding?

Service life depends on the coating system, the fastener type and the substrate behind the panel, not on the metal alone. A painted steel panel over proper housewrap and furring with correct clearances outlasts an unpainted panel screwed tight to damp sheathing. Ask for the paint finish warranty in writing and confirm it covers chalking and fade, not just perforation.

Does metal siding cost more to install on a two-story house?

Yes, and the increase is mostly labor and access. Two-story walls add scaffolding or lift time, more OSHA fall protection setup, and slower panel handling at the gable end. Estimate the wall by square, then add access as a separate line so you can see what the height actually costs rather than burying it in the unit rate.

What is the difference between corrugated and standing seam metal siding cost?

Corrugated is an exposed-fastener panel: screws with washers sit on the face, coverage width is narrow because of the lap, and installation is quick. Standing seam hides the fastener under a raised rib and needs concealed clips, tighter tolerances and more skilled labor. The standing seam metal siding price per square foot runs higher on both material and labor lines.

Do I need to remove old siding before installing metal siding?

Not always, but the decision belongs in the estimate either way. Going over existing siding requires furring strips to create a flat plane and a drainage gap, plus longer fasteners and new trim at every transition. Removal adds disposal and substrate repair as separate line items. Confirm what your local building department requires for the assembly.

How is metal siding cost per square calculated?

A square is 100 sq ft of wall area. Measure net wall area, add openings back at their gross dimensions, apply a waste factor, then divide by 100. Material is priced per square by panel coverage width and gauge; labor is priced per square or converted from a crew day rate. Trim, flashing and fasteners are counted separately by piece and by count.

Can you use my estimate template?

Send the template along with the plans and we confirm whether the estimate can be delivered in it. If the template's line structure cannot hold the unit and measurement rule for each item, we say so before the quote rather than after.

Metal Siding Cost: What Drives the Price Per Square Foot

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