80x80 Indoor Sports Facility

Quantities, not prices, are publishable here: roof cladding runs 6,597 square feet — 3% above the 6,400-square-foot floor at a 3:12 pitch — with 79 cubic yards of nominal slab beneath it. Storage expands until it meets a wall, so give it a wall on purpose.

Floor treatments, power distribution, ventilation to the fitted area and its finishes carry a cost per square foot well above the open floor's, so the split between the two moves the estimate more than the total area does.

• clear height set by the most demanding activity
• the clear span and how the floor subdivides
• zoned lighting and control
• equipment storage rooms opening onto the floor

This page is ordered around fitted and support space, because every square foot committed to equipment or rooms is floor that can no longer be rescheduled.

The footprint holds 2 training zones — 2 across by 1 deep — and leaves 26 feet of depth for a fixed equipment area with its own floor treatment, separated from the open activity surface it serves.

Read this footprint through its span. 80 feet across is the fixed constraint; 80 feet of length is the negotiable one, and at 1 to 1 the building is close to square, so movement runs in both directions. The count of working positions, not the headline area, is the figure that survives contact with the operation.

A 80 by 80 footprint is a near-square plan: 6,400 sq ft enclosed by 320 ft of wall, at a 1:1 length-to-width proportion. Along its 80 ft dimension it takes 2 runs of training zones at 40 ft, leaving 0 ft over — the 0 ft is where the argument about this size actually happens. Taken purely as arithmetic, 80 by 80 gives 2 training zones across the 80 ft dimension once 14 ft is reserved for movement, and 2 deep along the 80 ft dimension. Run as a a facility combining an activity floor with fixed training and conditioning areas, 6 ft across is below the 12 ft this use needs to be worth planning, so there is no separate equipment area, so fixed equipment stands on the activity floor and permanently reduces it Storage is the chronically undersized allocation in every activity building, and equipment ends up at the edge of the surface when it has nowhere else to be.

At 80x80 the operating question is a specific one: how much of this floor becomes permanently fitted, and what does that do to the open surface that remains? That is a different question from the one a indoor sports facility of another shape has to answer, and it is why this footprint is planned as a facility combining an activity floor with fixed training and conditioning areas rather than as generic covered area.

The programming pattern this floor could equally be scheduled as is a single activity floor scheduled for one group at a time: the margin is minimal, so equipment and waiting participants stand at the edge of the active surface. Fitted areas belong along one side or at one end with their own floor treatment, so the open surface stays a single rectangle. Equipment scattered around the perimeter produces a floor with no clean dimension anywhere.

The 26-foot leftover depth is 2,080 square feet across the full width — deep enough to plan deliberately, and at this footprint it goes to a fixed equipment area with its own floor treatment, separated from the open activity surface it serves. Access, not area, is what makes a plan feel small once it is in use.

The 20 feet of spare width runs the whole 80-foot length — 1,600 square feet of wall strip. It earns its keep as shelving, staging or a walking route, not as another training zone. Set the openings before the interior, because the openings cannot move and the interior can.

At 1:1 the plan is close enough to square that neither width nor depth is doing the arguing; what decides the layout here is where the openings go, because no proportion is forcing a direction on the floor. Spent as a square 80 by 80 instead, the same 6,400 sq ft would stand 2 training zones across rather than 2, and would trade this plan's length for parallel access. That is the width-against-depth decision this footprint has already made. At this size the building becomes a shared resource, and shared resources need a written rule for who parks where and which door is kept clear. The longest internal travel on a 80 by 80 plan is about 113 ft corner to corner, and the shortest useful one is the 80 ft cross-run. For a a facility combining an activity floor with fixed training and conditioning areas that matters where fitted training area sits, because shortening the 80 ft run to serve it lengthens every trip along the 80 ft dimension. Changing, restroom and waiting provision is sized against concurrent groups; provisions for the specific building are determined by the local authority. That movement pattern, not the 6,400-square-foot total, is what decides whether the leftover 26 feet is useful here.

The columns win at this footprint: 20-foot nominal bays against a 30-foot module means every layout decision starts from where the frames fall. Where the building sits on the site changes how much of this floor is genuinely reachable.

One row deep keeps the layout honest — no aisle to protect, no rear zone to serve, and the full 80-foot length available along the wall. Snow, wind and site exposure change what this shape costs to build long before the interior plan does.

Extension is cheapest along the 80 ft dimension, where each added bay repeats work already framed; widening past 80 ft is a different frame rather than a longer one. Growing to 80 by 120 adds a 3th run of training zones — useful if the constraint is training zones rather than the 0 ft already spare at the far end.

Configured as a facility combining an activity floor with fixed training and conditioning areas, 80x80 is judged on whether the 2 training zones it holds match the operation, and on whether the 20 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 80-foot length being bought for depth, or for the repeated bays — six to eight repeated bays, and the bay line becomes the organising device for the whole plan?
• Which sport sets the clear height, and does every zone meet it?
• How does the floor subdivide, and does the structure allow the dividing lines you want?

One opening per position works on this gable: 2 across 80 feet, with 20 feet of wall to distribute as piers. Splitting that margin evenly is what keeps the elevation buildable. The mezzanine that is added afterwards is the change order that reprices the frame.

The fitted area benefits from its own entrance, because it is used at different hours from the scheduled floor. Equipment delivery needs a route that does not pass through either.

Across a 80-foot span the 3:12 pitch adds 10 feet between eave and ridge. The centreline measures 24 feet; anything parked or stacked near a wall lives with the 14-foot eave. Fire separation, egress and occupancy are determined for the specific building and can reshape this plan entirely.

Height on a 80 ft span is a separate decision from the 80 ft length, and it is the span that sets the frame's behavior. Raising the eave over 6,400 sq ft affects every bay along the 80 ft dimension, so the test is whether fitted training area genuinely needs the extra clear height or only the floor area.

Ventilation across 6,400 square feet at this height: sustained high activity across a large volume, so air handling is sized for the busiest scheduled period.

• 40x70 moves the count from 2 to 0 training zones (0 across by 0 deep), which is the reason to choose between them.
• 30x100 moves the count from 2 to 0 training zones (0 across by 0 deep), which is the reason to choose between them.
• 50x60 moves the count from 2 to 1 training zones (1 across by 1 deep), which is the reason to choose between them.

Because this footprint is planned as a facility combining an activity floor with fixed training and conditioning areas, the useful next reads are different from the ones a differently shaped indoor sports facility suggests: fitted training area, committed versus open floor, equipment zone separation.