SettingsSettings for this calculationUS
The total length of the debris chute run to be supported.
Measure the full run from the top discharge point to the bottom, along the actual chute path (including any offsets), not just the straight-line building height.
The maximum distance allowed between support brackets, from the chute manufacturer's installation instructions.
This value is set by the specific chute manufacturer for your exact chute model — OSHA publishes no generic spacing table, so do not substitute an assumed or generic value here.
Number of support brackets needed
9 brackets
OSHA 29 CFR 1926.852 requires chutes to be securely supported and resist impact failure but publishes no specific bracket spacing table — the maximum spacing MUST come from the specific chute manufacturer's installation instructions for your exact chute model, not a generic assumption.
- Bays down the chute
- 8
- Bracket centres down the chute
- 12.25 ft
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Debris Chute Support Bracket Spacing Calculator: 9 brackets — shown in imperial, US market. The link sets both, so the result they see is the one on your screen.
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How this was calculated
Formula source(s)
- Number of brackets = ceil(Chute Run Length ÷ Maximum Bracket Spacing) + 1. OSHA 29 CFR 1926.852 requires debris chutes to be securely supported and resist impact failure as a performance standard, but per OSHA's own standard interpretation, it publishes no specific bracket spacing table or formula — the maximum spacing must come from the specific chute manufacturer's installation instructions.
Inputs used
- Chute Run Length
- 98 ft
- Maximum Bracket Spacing (per Manufacturer's Installation Manual)
- 13 ft
Intermediate steps
- Bays down the chute
- 8
- Bracket centres down the chute
- 12.25 ft
Confidence note: OSHA 29 CFR 1926.852 requires chutes to be securely supported and resist impact failure but publishes no specific bracket spacing table — the maximum spacing MUST come from the specific chute manufacturer's installation instructions for your exact chute model, not a generic assumption.
What this calculation does not cover
- Counts brackets, not the fixings that hold them. What a bracket can take comes from the anchor and the substrate behind it — a through-bolt at a slab edge, a beam clamp on steel, a resin anchor into a parapet — and unreinforced parapet masonry lets go long before the bracket does. The manufacturer's spacing assumes a support the bracket can properly be fixed to, and nothing here checks that you have one.
- Treats every support as identical, and the loads are not. A chute of chained sections hangs from the top, so the topmost bracket and the hopper frame carry the weight of everything below them while a bracket half way down mostly restrains. Bends and offsets take impact instead, where the debris changes direction. Spacing that is correct through the middle of a run can be badly wrong at either end of it.
- Ignores the fixtures that break the run. A top hopper, any intermediate loading hopper at a working floor, and the last section over the container are heavy, and they sit exactly where debris is thrown in. Each needs its own support outside the regular spacing — those brackets are additional to this count, not part of it.
Estimated cost — your price
This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.
Computed in your browser — nothing you enter is uploaded. Presented in US customary units and US trade terminology. Where a formula follows a published standard, that standard and its edition are cited beside it on this page; where none governs, the page says so. Local amendments override model codes — verify against the code in force where you build.
Sources checked 2026-09-06 · in the site-wide review of 2026-09-06 · v1.0.1
Regulatory standards & verification citations1
- Number of brackets = ceil(Chute Run Length ÷ Maximum Bracket Spacing) + 1. OSHA 29 CFR 1926.852 requires debris chutes to be securely supported and resist impact failure as a performance standard, but per OSHA's own standard interpretation, it publishes no specific bracket spacing table or formula — the maximum spacing must come from the specific chute manufacturer's installation instructions.
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