Drywall Installation in St. Louis: Board Selection, Sequencing and What Drives the Price on Commercial and Large Residential Jobs
Drywall installation on a St. Louis commercial interior or a large custom home is a different job from hanging a few sheets in a basement. Board type changes room by room, rated assemblies have to be built exactly, inspections dictate the hanging sequence, and ceilings and soffits are where the labor really lives. This guide is for GCs, builders and owners who want to understand what they are buying when they get a drywall installation bid, and where the number comes from.
Scope: What "Drywall Installation" Includes on a Commercial Job
On a plans-based bid, drywall installation normally covers hanging board on framed walls and ceilings, fastening per the spec, taping and finishing to the level called out, corner bead and trims, control joints, and cleanup of drywall debris. Depending on the project it may also include sound batt insulation in partitions, ACT grid and tile, and the drywall side of shaft walls and rated assemblies.
What it usually does not include: doors and frames, paint, fireproofing patch, access panels furnished by others, or fire-stopping at penetrations made by other trades. When you compare bids, check the exclusions before the totals.
Board Types and Where They Go
Standard 1/2 inch for most non-rated interior walls and ceilings in residential and light commercial.
5/8 inch Type X for rated walls, corridors, tenant separations, most commercial ceilings, and anywhere the UL assembly calls for it. Many St. Louis commercial specs call for 5/8 throughout for durability.
Moisture-resistant (green or purple board) in restrooms, janitor closets, break rooms and behind sinks. Not a substitute for cement board in wet areas.
Abuse- and impact-resistant board in corridors, schools, healthcare and back-of-house where carts and equipment hit walls.
Shaft liner and C-H stud assemblies for elevator shafts, stair enclosures and mechanical chases.
Ceiling board or sag-resistant 1/2 inch on ceilings with 24 inch framing spacing.
If the drawings mark wall types with a partition schedule, the board type is set. If they do not, we price to the spec section and flag anything that needs an answer before the bid closes.
Hanging Sequence and Inspections
In St. Louis County, St. Louis City and most municipalities, rated walls get an in-wall inspection before they close, and framing and rough-in inspections happen before drywall at all. That drives the sequence:
Framing complete and inspected.
One side of board on rated walls, so the inspector can verify the assembly and the fire-stopping.
MEP rough-in, blocking and backing, and the in-wall inspection.
Second side of board, then ceilings and soffits.
Tape, finish and sand, with the finish level by area.
Punch and turnover to paint.
A drywall contractor who tries to hang everything at once on a rated job ends up cutting inspection holes later. That costs more than sequencing it correctly.
Ceilings, Soffits and High Walls
Flat walls at 9 to 10 feet are the cheap part of any drywall job. Costs climb with hard-lid drywall ceilings, soffits and bulkheads around ductwork, high walls that need lifts or scaffolding, and curved or radius conditions. Warehouse offices, retail with open ceilings and high demising walls, and church and school spaces all carry significant high-wall labor. Ask your contractor how they are staffing the lift work and whether it is in the price.
What Drives the Price
Drywall installation is priced primarily on labor, and labor is driven by these factors:
Total square footage of board, and how much of it is ceiling versus wall.
Finish level by area. Level 5 in a lobby costs meaningfully more than Level 4.
Board type. Type X, abuse-resistant and shaft liner cost more in material and in handling.
Height. Anything over about 12 feet adds lift time and safety setup.
Complexity. Soffits, bulkheads, radius walls, and many small rooms mean more cuts and more corner bead per square foot.
Access and logistics. Elevator-only buildings, limited staging, and occupied spaces slow production.
Prevailing wage. Public projects in Missouri carry certified payroll and the rates that come with it.
Schedule. Compressed durations mean bigger crews or overtime.
A bid that comes in far below the others usually left one of these out. It is worth a five-minute call to find out which one before you award.
Large Residential Drywall Packages
Builders and remodelers doing whole-house or large-addition drywall in St. Louis County, St. Charles County and the surrounding suburbs get the same crew and the same process. We hang, tape and finish complete houses and large additions, including 5/8 board on ceilings, Level 5 where the finish schedule calls for it, and coordinated timing with the painter. We do not take patch, repair or single-room jobs, which keeps the crews available for full packages.
Quality Checks We Build In
Screws set just below the surface without breaking the paper, on the fastener pattern the spec calls for.
Factory edges together, butt joints staggered and backed where required.
Corner bead straight and tight, with the right bead for the condition: metal, paper-faced, or vinyl bullnose.
Control joints where the spec or the run length requires them.
Level 4 or 5 finish sanded and checked under a raking light before the painter arrives.
Send Us Your Plans
St. Louis Drywall Pros bids commercial drywall, metal stud framing and large residential drywall packages across the St. Louis metro. Send drawings, spec sections 09 22 16 / 09 29 00, the project location and your bid date to Stldrywallpros@gmail.com, or call (314) 691-2444. Office: 10781 Indian Head Industrial Blvd, Suite 1051, St. Louis, MO 63132.
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