80x200 Manufacturing Steel Building

No price appears on this page. The quantities that scale an estimate at 80x200 are 16,000 square feet of slab, 197.5 cubic yards of nominal concrete, 7,840 square feet of wall cladding and 16,492 square feet of roof cladding. The plan is only as good as the route into it, which is a site question rather than a building one.

Proportion drives cost here as much as size does: 560 ft of wall around 16,000 sq ft is 0.035 ft of wall per enclosed square foot, and a squarer plan of the same area would carry less. What moves the figure further on a one production line running end to end through the building is the fit-out single line production layout implies, along with framed openings and the height chosen for the 80 ft span.

• clear height for machine access and overhead handling
• power capacity for the equipment set
• foundation and slab requirements under machines, which are engineering items
• extraction at process positions

This page is ordered around the production sequence, because the order of the stations and the buffers at either end are what this length is spent on.

The footprint holds 28 stations — 4 across by 7 deep — and leaves 20 feet of depth for an inbound buffer at the head of the line and a finished buffer at its tail, so the line is never stopped by handling.

Efficiency is the useful number here: 571 square feet of enclosed floor per station, against a 432-square-foot module. That leaves working slack around each position. Fire separation, egress and occupancy are determined for the specific building and can reshape this plan entirely.

A 80 by 200 footprint is a long corridor of a plan: 16,000 sq ft enclosed by 560 ft of wall, at a 2.5:1 length-to-width proportion. Along its 200 ft dimension it takes 8 runs of stations at 24 ft, leaving 8 ft over — the 8 ft is where the argument about this size actually happens. Taken purely as arithmetic, 80 by 200 gives 3 stations across the 80 ft dimension once 12 ft is reserved for movement, and 8 deep along the 200 ft dimension. Run as a one production line running end to end through the building, 14 ft across is enough to be worth planning: an inbound buffer at the head of the line and a finished buffer at its tail, so the line is never stopped by handling Compressed air and services drops are cheaper to over-provide at construction than to extend during production.

This footprint is planned as one production line running end to end through the building. Compared with a 80 by 150 of the same width, the extra depth here adds run rather than reach: it buys about 8 stations in line, and every position past the second is retrieved by moving what stands in front of it. Spent as a square 126 by 126 instead, the same 16,000 sq ft would stand 6 stations across rather than 3, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. At this scale the building is infrastructure rather than a shed; scheduling, traffic direction and separation of activities matter more than any single dimension. The longest internal travel on a 80 by 200 plan is about 215 ft corner to corner, and the shortest useful one is the 80 ft cross-run. For a one production line running end to end through the building that matters where single line production layout sits, because shortening the 80 ft run to serve it lengthens every trip along the 200 ft dimension. Scrap and offcut handling is planned or it accumulates at the nearest wall to the process that produces it.

At 25-foot nominal bays the structure works with the layout instead of against it: one station per bay line, walls free of awkward half-positions. Judge the plan by what has to happen on the worst day of the year, not on an average one.

Depth here creates a hierarchy: 7 rows means front positions get used and rear positions get filled. Deciding which is which up front is what keeps 80x200 workable. Rows that cannot be entered independently end up used as one long space.

A line grows by adding stations in sequence, so the building should be extendable at the tail. Growth that has to be inserted mid-line is the most disruptive change a production building can absorb.

Configured as one production line running end to end through the building, 80x200 is judged on whether the 28 stations it holds match the operation, and on whether the 8 feet of spare width leaves the route this mode depends on.

• Does the work need racking or work zones on both sides with a full vehicle lane down the middle, or does it need a second lane that this 80-foot span cannot give?
• Is the 200-foot length being bought for depth, or for the repeated bays — a long uninterrupted bay sequence that suits repetitive layouts and continuous processes?
• Is the machine list fixed, and has the line order been drawn before the building?
• Can a machine be removed and replaced without shutting the line?

The production arrangement this floor could equally be laid out for is a floor planned around sustained throughput rather than around individual jobs: there is no maintenance band, so equipment is reached across a running lane and maintenance has to wait for a stoppage. Stations are set out along the flow with the buffers claimed first, because buffers are the allocation that gets eaten and the one whose loss stops the line. Cross-traffic is kept off the line's length entirely.

The 20-foot leftover depth is 1,600 square feet across the full width — deep enough to plan deliberately, and at this footprint it goes to an inbound buffer at the head of the line and a finished buffer at its tail, so the line is never stopped by handling. The mezzanine that is added afterwards is the change order that reprices the frame.

Spare width is the more valuable of the two leftovers here: a continuous 8-foot strip beats the same area stranded at the end of the run, because it touches every position along the way. Storage expands until it meets a wall, so give it a wall on purpose.

Compared with a 80 by 150 of the same width, the extra depth here adds run rather than reach: it buys about 8 stations in line, and every position past the second is retrieved by moving what stands in front of it. Spent as a square 126 by 126 instead, the same 16,000 sq ft would stand 6 stations across rather than 3, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. At this scale the building is infrastructure rather than a shed; scheduling, traffic direction and separation of activities matter more than any single dimension. The longest internal travel on a 80 by 200 plan is about 215 ft corner to corner, and the shortest useful one is the 80 ft cross-run. For a one production line running end to end through the building that matters where single line production layout sits, because shortening the 80 ft run to serve it lengthens every trip along the 200 ft dimension. Scrap and offcut handling is planned or it accumulates at the nearest wall to the process that produces it. That movement pattern, not the 16,000-square-foot total, is what decides whether the leftover 20 feet is useful here.

The 80-foot gable can carry 4 openings, one per station, with 8 feet of wall left for piers between and beside them — the arrangement that keeps each position independently reachable. Two feet of spare width reads as nothing on a plan and as a great deal when a machine is being turned.

Two openings at opposite ends suit this plan better than one large one, because inbound and outbound traffic never meet. Where only one opening is possible, the buffer at that end has to absorb both.

Material received at the head of the line and product shipped from the tail, which is what keeps the two flows from colliding.

The stored configuration carries a 14-foot eave and computes to 24 feet at the ridge on a 3:12 pitch — a 10-foot rise across 80 feet. Height is therefore not uniform, and the sidewall is the constraint. Circulation width is the first thing surrendered under pressure and the first thing missed afterwards.

Height on a 80 ft span is a separate decision from the 200 ft length, and it is the span that sets the frame's behavior. Raising the eave over 16,000 sq ft affects every bay along the 200 ft dimension, so the test is whether single line production layout genuinely needs the extra clear height or only the floor area.

Ventilation across 16,000 square feet at this height: process extraction at machine positions, planned with the equipment rather than after it.

• 80x80 moves the count from 28 to 3 stations (3 across by 1 deep), which is the reason to choose between them.
• 60x120 moves the count from 28 to 6 stations (2 across by 3 deep), which is the reason to choose between them.
• 50x150 moves the count from 28 to 10 stations (2 across by 5 deep), which is the reason to choose between them.

Because this footprint is planned as one production line running end to end through the building, the useful next reads are different from the ones a differently shaped manufacturing building suggests: single line production layout, station sequence, inbound and finished buffers.