80x100 Distribution Center

No price appears on this page. The quantities that scale an estimate at 80x100 are 8,000 square feet of slab, 148.1 cubic yards of nominal concrete, 7,200 square feet of wall cladding and 8,433 square feet of roof cladding. Temperature swing on a steel shell drives condensation decisions that outrank most layout preferences.

Proportion drives cost here as much as size does: 360 ft of wall around 8,000 sq ft is 0.045 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 a cross-dock floor where goods are sorted rather than stored is the fit-out cross-dock planning implies, along with framed openings and the height chosen for the 80 ft span.

• the number of dock openings and their equipment
• clear height for racking
• floor area committed to staging rather than storage
• yard area for trailer manoeuvring

This page is ordered around height and clearance, because at 80x100 the 20-foot eave limits a distribution center sooner than the plan does.

The footprint holds 12 staging lanes — 6 across by 2 deep — and leaves 24 feet of depth for a marshalling strip between the two dock faces where a load can be broken down without blocking either one.

Commitment first: 54% of the 8,000 square feet goes to staging lanes at 360 square feet each, and 2,720 square feet survives as edge strip. A footprint is worth its own decision when that split lands where the work does. Height is the dimension people regret; it cannot be added later without rebuilding the frame line.

A 80 by 100 footprint is a mildly directional plan: 8,000 sq ft enclosed by 360 ft of wall, at a 1.3:1 length-to-width proportion. Along its 100 ft dimension it takes 3 runs of staging lanes at 30 ft, leaving 10 ft over — the 10 ft is where the argument about this size actually happens. A cross-dock floor is a machine for moving goods across a building rather than a place to keep them. That inverts the usual planning order: the dock faces and the clear route between them are decided first, and floor area is whatever those require. Slotting stock by movement rate saves more handling time than any single layout change.

This footprint is planned as a cross-dock floor where goods are sorted rather than stored. Flow is directional and time-boxed: goods arrive in a window, are sorted, and leave in another. The plan is judged on whether inbound and outbound can peak within the same hour without meeting. An internal receiving area sized to one full vehicle load is what keeps checking out of the traffic route.

The stored configuration carries a 20-foot eave and computes to 33.3 feet at the ridge on a 4:12 pitch — a 13.3-foot rise across 80 feet. Height is therefore not uniform, and the sidewall is the constraint. A building that cannot be reversed out of is a building that gets used in one direction only.

Height on a 80 ft span is a separate decision from the 100 ft length, and it is the span that sets the frame's behavior. Raising the eave over 8,000 sq ft affects every bay along the 100 ft dimension, so the test is whether cross-dock planning genuinely needs the extra clear height or only the floor area.

The handling pattern this floor could equally be run as is a regional hub combining storage, assembly and vehicle turnaround: there is no control position with sight of the floor, so coordination is by phone and the yard fills before anyone sees it. Dividing the 8,000 sq ft by the 12 by 30 ft staging lane gives roughly 15 positions before circulation is deducted a second time for cross movement. Whether the plan keeps 15 or drops to 12 comes back to the question this footprint is really answering: does anything actually rest in this building, or does it only pause here?

Because 24 feet clears the 12 feet this platform treats as usable, the end of the run is a room rather than a gap: 1,920 square feet for a marshalling strip between the two dock faces where a load can be broken down without blocking either one. A wider bay is a structural decision and a longer bay is a layout decision; the two are often confused.

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. Service routes are cheap to plan now and expensive to retrofit through a finished shell.

Flow is directional and time-boxed: goods arrive in a window, are sorted, and leave in another. The plan is judged on whether inbound and outbound can peak within the same hour without meeting. An internal receiving area sized to one full vehicle load is what keeps checking out of the traffic route. That movement pattern, not the 8,000-square-foot total, is what decides whether the leftover 24 feet is useful here.

One opening per position works on this gable: 6 across 80 feet, with 8 feet of wall to distribute as piers. Splitting that margin evenly is what keeps the elevation buildable. Noise from this floor reaches the office, the neighbours and the yard, and separation is a plan decision.

Opposed dock faces are the defining feature. Their positions relative to the yard decide whether vehicles manoeuvre once or repeatedly, and the yard depth usually constrains the building before the floor does.

Dock-height handling at fixed positions, with staging depth in front of every dock that cannot be borrowed for storage.

Nominal bay division computes to 4 bays at about 25 feet, wider than the 12-foot module — so a position can sit inside a bay without a frame line splitting it. Every foot of width added multiplies through the roof and the frame; every foot of length mostly adds skin.

With 2 rows deep, the rear row is behind the front one. Without a route past it, those staging lanes become storage positions rather than working ones — the real cost of depth at this width. Cleaning, maintenance and inspection all need reach, and reach is planned in the gaps rather than in the modules.

A cross-dock grows by lengthening the dock faces, not by deepening the building. Extra depth adds travel to every movement without adding throughput.

Configured as a cross-dock floor where goods are sorted rather than stored, 80x100 is judged on whether the 12 staging lanes 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 100-foot length being bought for depth, or for the repeated bays — eight to ten repeated bays, which makes the layout a scheduling problem as much as a spatial one?
• How many docks does the throughput need, and does the yard support them?
• Is the staging depth in front of the docks protected from becoming storage?

• 40x80 moves the count from 12 to 4 staging lanes (4 across by 1 deep), which is the reason to choose between them.
• 60x60 moves the count from 12 to 6 staging lanes (6 across by 1 deep), which is the reason to choose between them.
• 50x80 moves the count from 12 to 5 staging lanes (5 across by 1 deep), which is the reason to choose between them.

Because this footprint is planned as a cross-dock floor where goods are sorted rather than stored, the useful next reads are different from the ones a differently shaped distribution center suggests: cross-dock planning, dock face layout, transfer route planning.