Rolling Steel vs Sectional Door

Use the same opening and requirements for both quotes. Write down the supplier’s answer and the document that supports it.

Uptime Dock & Door Research · Version 1.1.0 · Sources checked September 17, 2026 · U.S.-market reference

Fourteen purchasing prompts — not a regulatory inspection checklist
Field	What to request	Quote A: answer / evidence	Quote B: answer / evidence
1 Exact opening and door type	Width and height of the finished opening, and whether the proposal is a sectional door, a rolling steel slat door or a rolling sheet door Three different products sit behind the word roll-up
2 Mounting arrangement	Face of wall, between jambs or under lintel for a rolling door; standard, high, vertical or low-headroom lift for a sectional door Mounting and track layout affect the required space.
3 Headroom, side room and backroom required	The numbers for the exact configuration quoted, from the manufacturer's drawing Published family averages do not survive contact with a real opening
4 Open-door envelope against what is already there	A drawing showing the open door against racking, sprinklers, ducts, lights, cranes and the operator position The door must clear the actual racking, equipment and services.
5 Thermal figure, and what it measures	Whether the number is a calculated section or slat value or a tested assembly U-factor, and the test standard The same number can describe a slat or a whole door
6 Air leakage figure and test	Air leakage in cfm per square foot (cubic feet per minute per square foot), test pressure, test procedure and configuration. Compare the test pressure and the quoted seals, glazing and other options.
7 Seals, glazing and options as quoted	Whether the published thermal number applies to the configuration actually offered Windows and pass doors can change the result
8 Cycle figure, and what it measures	Whether the number is a spring rating, a warranty term, a tested door result or a usage statement A cycle count needs a component or assembly scope.
9 Normal and peak daily use	Your own cycles per day, both typical and busiest period, in writing to the supplier Give the supplier your actual workload rather than adopting a catalogue example.
10 Operator duty rating	Cycles per hour or per day for the operator, separately from the door The operator has its own duty rating
11 Wind load requirement and evidence	Positive and negative design pressures, accepted test/approval path, and evidence for the proposed size, options and anchorage; add debris requirements where applicable. A common unit alone does not make test configurations or design pressures equivalent.
12 Fire rating, if the opening needs one	The listing and label for the assembly, not a description of the material A steel door is not automatically a rated closure
13 Complete installed scope	Door, operator, controls, freight, removal, access equipment, electrical, structural work, permits and stated exclusions A like-for-like price needs a like-for-like scope.
14 Warranty, lead time and maintenance scope	Written warranty terms and what they cover, current lead time, and the maintenance the maker requires Coverage, exclusions and maintenance obligations must be read in the actual warranty.

Do not treat a spring rating as whole-door life, a slat/section thermal value as a tested assembly result, or a catalogue size as approval for the opening. A drawing and the applicable project requirements decide the fit. The prompts are Uptime’s editorial work, based on the source topics identified below.

Uptime Dock & Door is an independent commercial service-referral publisher, not a manufacturer, standards body or repair contractor. This worksheet contains no service request or required attribution link.

Rolling steel door vs sectional door: quote checklist