50x100 metal building material list and cost
A full framing, sheeting, and trim takeoff for a 50' × 100' weld-up building: 12' eave, 4:12 pitch, one walk door, one 10'×10' roll-up door. Generated by Gable Takeoff; every number below is a real output, not a rounded guess.
Prices as of September 2026.
Where the money goes
Each category includes 8.25% sales tax and a 15% markup, matching the app's defaults. Both are adjustable to your own numbers.
| Category | What's in it | Cost |
|---|---|---|
| Steel, sheet & trim | I-beams, purlins, girts, eave struts, end wall columns, roof & wall sheets, one walk door, and all trim | $46,388 |
| Doors & Windows | One 10'×10' roll-up door | $2,490 |
| Grand total | $48,878 |
Main frame members
Columns and rafters are cut as separate pieces and nested onto stock lengths with the least waste; each row is the stock to buy and how it's cut. Weight is quantity × stock length × pounds per foot (the second number in the size: W12x19 is 19 lb/ft), which adds up to the 7,840 lb above.
| Stock & cuts | Qty | Size | Length | Weight |
|---|---|---|---|---|
| Cut into 1 × 26' 4 1/4" rafter, 1 × 12' 0" column · 1' 7 5/8" drop | 6 | W16x26 | 40' | 6,240 lb |
| Cut into 1 × 26' 4 1/4" rafter, 1 × 12' 0" column · 1' 7 5/8" drop | 4 | W8x10 | 40' | 1,600 lb |
| Total frame steel | 7,840 lb | |||
Span charts behind these sizes
The highlighted rows set this building's sizes: a 50' clear span calls for W16x26 frames, and 25' bays call for 8" roof purlins. These are the app's default charts.
Main frame · gable
| Clear span up to | Beam |
|---|---|
| 30' | W12x14 |
| 40' | W12x19 |
| 50' | W16x26 |
| 60' | W18x35 |
Purlins & wall girts
| Bay span up to | C-section |
|---|---|
| 20' | 6" |
| 25' | 8" |
| 30' | 10" (roof only) |
Adjust them for your climate. Snow and wind loads vary by region, so every row is editable on the app's Settings tab. Change a size or a span break to match what your engineer or local code requires, and every new estimate uses your charts. More about span charts
Full material list
Wall, roof, and trim color: Charcoal Gray.
| Item | Qty | Size | Length | Notes |
|---|---|---|---|---|
| 1. I-Beams | ||||
| I-beam stock | 6 | W16x26 | 40' | cut each 1 × 26' 4 1/4" rafter, 1 × 12' 0" column · 1' 7 5/8" drop |
| I-beam stock | 4 | W8x10 | 40' | cut each 1 × 26' 4 1/4" rafter, 1 × 12' 0" column · 1' 7 5/8" drop |
| Tube stock | 2 | TS4x4x.188 | 24' | cut each 1 × 20' 4" center column · 3' 8" drop |
| Weld plates | 2 | 6" × 6" | — | one per column · 2 end wall center columns (TS4x4x.188) |
| Weld plates | 4 | 6" × 12" | — | one per column · 4 end wall frame columns (W8x10) |
| Weld plates | 6 | 8" × 20" | — | one per column · 6 interior frame columns (W16x26) |
| 2. Purlins, Girts & Eave Struts | ||||
| Roof purlins | 56 | 8" | 25' | |
| Eave struts | 8 | 8" | 25' | 4:12 pitch |
| Sidewall girts | 24 | 8" | 25' | |
| Gable end girts | 12 | 8" | 25' | |
| Above-eave girt (+7') | 2 | 8" | 20' | |
| Jamb purlins | 2 | 8" | 20' | nested — 2 jambs cut from these |
| Header purlins | 1 | 8" | 20' | nested — 1 header cut from these |
| 3. Roof & Wall Sheets | ||||
| Roof panels | 68 | — | 26' 5" | |
| Sidewall panels | 68 | — | 12' 0" | |
| Gable end panels | 36 | — | 12' 4" – 20' 4" | 4 @ 20' 4", 4 @ 19' 4", 4 @ 18' 4", 4 @ 17' 4", 4 @ 16' 4", 4 @ 15' 4", 4 @ 14' 4", 4 @ 13' 4", 4 @ 12' 4" (12" wide) · 36" wide |
| 4. Trim | ||||
| Ridge cap | 9 | — | 12' | 12" overlap · 4:12 pitch |
| Rake trim | 8 | — | mixed | 4 @ 22' 0" full-length, 4 @ 6' 4" seam piece · roof length + 1', seamed w/ 12" overlap |
| Eave trim | 18 | — | 12' | 12" overlap · 4:12 pitch |
| Outside corners | 4 | — | 13' 0" | sidewall height + 1', seamed w/ 12" overlap |
| Base angle | 13 | — | 25' | full slab perimeter, 12" overlap |
| Rake angle | 8 | — | 25' | end wall beams, full roof length, 12" overlap |
| Head trim (walk doors) | 1 | — | 3' 6" | top |
| Head trim (roll-up doors) | 1 | — | 11' 0" | top |
| Jamb trim (walk doors) | 2 | — | 7' 6" | both sides |
| Jamb trim (roll-up doors) | 2 | — | 11' 0" | both sides |
| Jamb wrap (roll-up doors) | 1 | — | 11' 0" | top |
| Jamb wrap (roll-up doors) | 2 | — | 11' 0" | both sides |
| 5. Accessories | ||||
| Peak boxes | 2 | — | — | one per gable end |
| Rake end caps | 4 | — | pair | left/right pair per rake run |
| Purlin clips | 210 | — | — | 2 per piece · 105 pieces to clip |
| Walk doors | 1 | — | 3' 0" × 7' 0" | Right sidewall · bay 1 · centered · White |
| 6. Doors & Windows | ||||
| Roll-up door | 1 | — | 10' 0" × 10' 0" | Front gable end · bay 1 · centered · Polar White |
| Steel, sheet & trim | $46,388 | |||
| Doors & Windows | $2,490 | |||
| Grand total | $48,878 | |||
Rough budgeting estimate, not a mill quote. Doesn't include permits, engineering, delivery, concrete, labor, or insulation (the Pro plans price those on top of the same takeoff). Prices use the app's default rates; your supplier pricing will differ.
What a 50' clear span changes
At 50' wide the main frame steps up to W16x26, and the extra rise puts the gable peak above 7', so each end wall gets an extra girt line above the eave. The 100' depth splits into four 25' bays, which keeps the purlins and sidewall girts at 8". With three interior frames, the frame steel is the biggest single jump from a 40'-wide building.
See it before you order it
This same 50x100 draws itself in the app. Pick your wall, roof, trim, door, and wainscot colors and the building repaints in 3D; switch to the wireframe to check where the purlins, girts, eave struts, and jamb purlins land. Eight views — four isometric corners and four straight-on elevations — so you can look at a door from outside or the framing from the corner you'll erect from.
Change any dimension and get your own real takeoff.