5-Step Checklist for Your Gensler Interior Design Project (Avoid These Mistakes)

Who This Checklist Is For

If you're a building owner, developer, or corporate client working with Gensler (or any design firm) on an interior fit-out or office-to-residential conversion, this is for you. I've been handling design and construction orders for Gensler-related projects for about 6 years. In that time, I've personally made (and documented) 12 significant mistakes, totaling roughly $38,000 in wasted budget. Now I maintain our team's pre-install checklist. Here are the 5 steps I wish someone had given me.

Step 1: Verify All Material Specifications Against the Actual Space

When I first started coordinating Gensler interior design projects, I assumed the spec sheet from the design team was final. Big mistake. In Q2 2023, we approved a beautiful white kitchen cabinets finish—only to discover the cabinet height was 1 inch taller than the ceiling clearance. The change order cost us $2,800 and a 2-week delay.

Checklist action: Before ordering any material, physically measure the opening. Don't trust the reflected ceiling plan alone. I now take a laser measure and photo-verify every dimension. Put another way: the design drawing is a guide, not a gospel.

(Should mention: this applies especially to custom items like frameless shower doors—they're cut to exact size, so a ¼" error means reordering the whole panel.)

Step 2: Confirm the "Standard" vs. "Custom" Definition with Every Subcontractor

Learned never to assume 'same specifications' means identical results across vendors. We were specifying a frameless shower door for a Gensler-designed bathroom. I said 'standard 3/8" tempered glass with clear coating.' The glass supplier heard '3/8" standard tempered glass' without the clear coating spec. Result: five doors arrived with a greenish tint instead of crystal clear. $3,600 wasted on re-fabrication.

Checklist action: Write down every attribute—thickness, coating, hinge type, handle finish—and have the sub read it back. I now use a shared Google Sheet with yes/no checkboxes for each attribute. It feels overkill until it saves your budget.

Step 3: Factor in the "Real" Lead Time (Not the Sales Promise)

I once ordered white kitchen cabinets for a Gensler office-to-residential conversion. The vendor promised 4 weeks. I assumed they'd be delivered in 4 weeks. Didn't verify the actual production calendar. Turned out they had a 2-week backlog for that finish. The cabinets arrived in week 6, throwing off the entire construction schedule. The delay triggered a $4,200 penalty from the general contractor.

Checklist action: Add a 30% buffer to any lead time quoted. Call the factory directly—don't rely on the sales rep's optimistic estimate. And ask: 'What's the longest you've taken for this product in the last 6 months?'

Step 4: Address Pest Prevention Early in the Design (Yes, Gnats)

Never expected how to get rid of gnats in house to become a project management issue. On a high-end residential conversion designed by Gensler, we installed beautiful white kitchen cabinets with soft-close drawers—but the cabinet bases had no seal against the slab. Within a month, moisture from the sink area attracted gnats. The homeowner was furious. We had to retrofit all base cabinets with moisture barriers and drain covers, adding $1,800 and a lot of embarrassment.

Checklist action: During the design review, flag any areas where moisture can accumulate—under sinks, near dishwashers, around shower bases. Specify sealed cabinet bottoms and proper drainage. It's a small detail that can become a big headache. (Per FTC Green Guides, we can't claim 'gnat-proof' without testing, but a well-sealed kitchen is a good start.)

Step 5: Create a Punch List for Small Clients Too

When I was starting out, I assumed small projects didn't need rigorous checklists. The vendors who treated my $5,000 orders casually are still the ones I avoid. One time, for a Gensler construction project that was just a 200-square-foot office interior, we skipped the final walkthrough because 'it's small.' The frameless shower door in the bathroom hadn't been properly anchored—dangerous, and we had to re-do the entire install. Small doesn't mean unimportant; small means potential.

Checklist action: Treat every project, regardless of size, with the same pre-delivery inspection. I now use a printed checklist with 20 items—walk through every door, every cabinet, every seal. It adds 30 minutes but saves thousands.

Common Mistakes and Final Notes

• Assuming 'final drawing' means no changes. Always expect at least one revision. Build it into the schedule.
• Not verifying insurance certificates. A subcontractor without valid workers' comp can shut down the entire site.
• Skipping the mockup. For any custom element (like those white kitchen cabinets or a frameless shower door), insist on a physical sample before production. I learned this after approving a digital render that looked nothing like real wood grain.

Bottom line: a checklist won't make you popular, but it'll make you profitable. Prices as of March 2025; always verify current rates with your vendors.