When you've supplied the same product to 100+ hotel projects across the US and Canada, patterns emerge. Not theories — patterns. Here's what the data across those projects actually shows:
Most projects fall into three categories:
50-80 rooms (small to mid-size). Typically independent hotels or smaller chains. Budget-conscious. Renovation cycle every 7-10 years. Cast marble chosen for the balance of cost and durability.
100-200 rooms (mid to large). Brand-name hotels (SpringHill Suites, Sheraton, etc.). Renovation driven by brand standards. Often converting tubs to showers. Cast marble chosen for speed and consistency across units.
200+ rooms (large properties). Convention hotels, large resorts. Renovation is a multi-year program, done in phases. Cast marble chosen for consistency across phases — same color, same pattern, years apart.
For a typical 150-room hotel converting tubs to showers:
The total project advantage: $80,000-$140,000. That's not a small number for a single renovation.
Pre-project measurement. The best outcomes come from projects where someone measures every shower rough opening before ordering. Variations of 1/2" to 1" are common in older buildings. Custom sizing eliminates on-site problems.
Factory-finished surfaces. The gel coat is cured and inspected at the factory. On-site work is limited to cutting panels to height and applying adhesive. No finishing, no curing, no waiting.
Single-vendor coordination. Projects where the panels, pans, and accessories come from one supplier have fewer compatibility issues and fewer scheduling delays. The wall panel flange height matches the pan flange height. The adhesive is rated for both materials.
Last-minute ordering. Cast marble is made to order. Lead time is 4-6 weeks for standard configurations. Ordering late pushes the entire renovation schedule back. We've seen this more times than we'd like.
Incomplete spec sheets. An order that says "150 shower sets" with no size details, no drain location information, and no pattern selection — those orders take three weeks just to clarify details.
Assuming all cast marble is the same. It's not. Gel coat quality varies. Resin formulation varies. Curing process varies. The projects that had issues years later were always the ones where the buyer chose solely on price.
We've been tracking projects long enough to see the 10-year picture. Here's what the properties that installed cast marble in 2015-2016 look like today:
If you're planning a hotel renovation or new construction with 50+ units, the pattern is clear:
The properties that chose solely on price learned an expensive lesson. The properties that chose on quality — verified gel coat thickness, IAPMO certification, and proven manufacturing — are the ones with showers that still look good a decade later.
Most major hospitality brands approve cast marble in their brand standards. Marriott brands (SpringHill Suites, Residence Inn, Sheraton) are among the heaviest users. Hilton and IHG brands also specify it for mid-scale and upscale properties.
Request color samples from the current production. Keep a reference sample in your project file. Order all units for a project from a single production run whenever possible. For phased renovations, have the manufacturer match to the reference sample.
"Can I see your IAPMO / CSA B45.5 test report?" If they can produce it, they're serious. If they can't, move on.
Place your order 6-8 weeks before your planned installation start date. This allows 4-6 weeks for manufacturing and 2 weeks for shipping. Last-minute orders create scheduling risk.
Specifying materials before measuring the actual rough openings. Showers built 20-30 years ago may not match the dimensions on the original blueprints. Measure every room, or at least a representative sample.
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