Casting and splinting supplies are a small line on the invoice and a large one in the clinic's reputation. A fracture patient who waits because the cart is out of 3 inch fiberglass remembers the wait, not the price. The cart has five components, each with a size run, and the buyer's job is to keep every size in stock at the right ratio. Here is how the materials compare and how to size the cart.
Fiberglass or plaster
Both are still in daily use, and the choice is clinical, not just cost:
| Material | Strengths | Trade-offs |
|---|---|---|
| Fiberglass casting tape | Lightweight, sets fast, moisture resistant, colors for pediatrics | Less moldable, higher unit cost |
| Plaster of Paris | Molds precisely, low cost, long shelf life | Heavy, slow to cure, weakens when wet |
Fiberglass has become the default for circumferential casts on active patients. Plaster remains the choice for splints where the clinician wants detailed molding, and for facilities that keep cost per application low. Most carts carry both: fiberglass in 2, 3, and 4 inch rolls and plaster splint rolls or pre-cut slabs in 3, 4, and 5 inch widths.
Padding and stockinette are not optional
The published technique for splinting and casting starts with stockinette against the skin, extending roughly four inches beyond each end of the intended splint, then two to three layers of cast padding wrapped with fifty percent overlap. Padding protects skin from the sharp edges and heat of setting material and leaves room for swelling. Skipping either step is where pressure sores and cast complaints start.
Stockinette comes in 2, 3, 4, and 6 inch tubular rolls, cotton or synthetic. Cast padding comes in 2, 3, 4, and 6 inch rolls, cotton or synthetic; synthetic padding holds up better if the cast will get damp. Match padding width to the casting tape width on the cart so staff are not improvising.
Pre-formed splints and the rest of the cart
Beyond the raw materials, a working cart carries:
- Fiberglass splint rolls with padding built in, 2 to 5 inch widths, for fast application in urgent care
- Pre-cut splints for common indications: wrist, thumb spica, ulnar gutter, posterior ankle
- Elastic bandages in 2 to 6 inch widths and cohesive bandage to secure splints
- Cast shoes in a size run, and cast saw blades and spreaders for removal
- Gloves, water basin, and a bench cover, because casting is messy
DeRoyal and BSN Medical both make full lines of casting materials, padding, stockinette, and pre-formed splints. Keystone lists both in the orthopedic soft goods and casting category with lead times on every line, and stocks DeRoyal orthopedic soft goods for the same customers.
Sizing the cart: par levels by setting
Count applications from the last ninety days and set two weeks of stock at the busiest pace:
| Setting | Weekly applications | Fiberglass rolls | Padding rolls | Stockinette rolls | Splint rolls |
|---|---|---|---|---|---|
| Urgent care, single site | 10 to 15 | 30 | 40 | 6 | 10 |
| Orthopedic clinic, two providers | 40 to 60 | 120 | 150 | 15 | 20 |
| Emergency department | 60 to 100 | 200 | 240 | 24 | 40 |
The ratio matters more than the totals: roughly 1.2 padding rolls per casting roll, with 3 inch and 4 inch widths making up two thirds of the mix. Pediatric-heavy practices shift toward 2 inch and colored fiberglass. Recount after any change in provider schedule; one added sports medicine clinic day can move weekly applications by a third, and the cart should move with it.
Lead times and the second brand
Casting tape is a stable product with a few large manufacturers, which means an allocation at one of them moves the whole market. Keep one alternate brand validated for the 3 inch and 4 inch rolls that carry most of the volume, and check the stated lead time before placing the monthly order. The same applies to padding, which is made by fewer plants than the casting tape it goes under. Keystone shows lead time per line and sources across a 490-plus distributor network when the usual brand is on allocation.
Put it on a standing order
Casting supplies, elastic bandages, gloves, and exam room consumables ride together on one purchase order, one delivery, and one invoice, with Net 30 for approved accounts and same-day quotes during business hours. Set the cart par as a standing order and adjust it quarterly.
See orthopedic soft goods and casting, or contact the sales department with your application counts for a cart list sized to your clinic.
Sources
- https://www.aafp.org/pubs/afp/issues/2009/0101/p16.html
- https://pmc.ncbi.nlm.nih.gov/articles/PMC12335991/
- https://www.aliem.com/splinter-series-splint-application-principles-102/
- https://orthotape.com/pages/what-is-fiberglass-casting-tape
- https://www.cnfmedical.com/products/casting/
