Number Trim & Molding Estimator
Trim is bought by the stick but measured by the room. Enter the room once and get every run you selected — baseboard, crown, chair rail, casing — with door openings deducted, waste added, stick counts and a material cost range.
Door openings deduct 3 ft from the baseboard and chair-rail runs. Crown runs the full perimeter (it crosses above doors). Casing is priced as a perimeter-equivalent planning run — for exact casing, count 2 legs + 1 header per side of each opening at your trim width. Prices are labeled planning ranges per linear foot for primed stock; prefinished and stain-grade hardwood land higher.
How it works
Net run = room perimeter − 3 ft per door opening. Every selected trim type runs that net length (crown uses the full perimeter in practice — the difference is one door header, absorbed by waste). Sticks = net × (1 + waste) ÷ 8 ft stock length, rounded up, per run type. Material cost = total linear feet across all selected runs × the material’s per-foot range. Optional labor adds a flat $1.50/linear ft planning figure — crown installs at the top of real-world labor ranges because every cut is a compound miter on a ladder.
Method & worked example
Method: Net run = 2 × (length + width) − 3 ft × door openings. Sticks per run = net × (1 + waste%) ÷ 8 ft, rounded up. Material = total linear feet (net × number of runs) × material range per foot: MDF $1.20–$2.50, pine $2.00–$4.00, oak $3.50–$6.50, PVC $1.50–$3.00. Optional install labor $1.50/linear ft. All prices labeled planning ranges.
Worked example: A 14×12 room, 2 doors: perimeter 52 ft, net 46 ft per run; baseboard + crown = 92 linear ft in pine = $184–$368, 7 sticks per run.
When to use this
- You are pricing a room refresh and trim is the missing line.
- A finish carpenter’s per-foot quote needs a check.
- You are choosing between MDF and wood with real numbers attached.
- You need stick counts for a store run, not just linear feet.
How to use it, step by step
- Measure the room’s length and width; count door openings.
- Check every trim run you are actually installing.
- Pick the material — the per-foot planning range updates the total.
- Set waste to 10% (15% for crown-heavy or cut-up rooms).
- Read sticks per run for the store, and the material range for the budget.
What the inputs mean
| Input | What it is | Typical values |
|---|---|---|
| Door openings | Each deducts a 3 ft casing width from baseboard/chair runs | 1–3 per room typical |
| Trim runs | Each selected profile runs the net perimeter | Baseboard alone, or baseboard + crown most common |
| Material | Per-linear-foot planning range for primed stock | MDF $1.20–$2.50; pine $2.00–$4.00; oak $3.50–$6.50 |
| Waste % | Cuts, miters and mistakes | 10% standard; 15% crown or first-timer |
Another worked example
A 16×13 room, 1 door, baseboard only in MDF, installed: perimeter 58 ft, net 55 ft. Materials $66–$138, labor at $1.50/ft = $82, total $148–$220. The same room in oak, materials only, would run $193–$358 — species choice outweighs the labor line at this scale.
Frequently asked questions
How much baseboard do I need for a 14×12 room?
Perimeter is 52 ft; two door openings deduct 6 ft, leaving 46 ft net. With 10% waste that is 7 sticks of 8 ft stock per run. Baseboard plus crown in pine (92 total linear ft) prices at $184–$368 in materials.
How many sticks is a linear foot estimate?
Divide the with-waste length by your stock length and round up: 46 ft net at 10% waste is 50.6 ft, ÷ 8 ft = 7 sticks. Longer stock (12 or 16 ft where sold) cuts the count and the number of joints — a 16 ft room wall in one stick looks better and wastes less.
Should crown molding deduct door openings?
No. Crown runs continuously along the wall-ceiling line, passing over door casing. Baseboard and chair rail stop at casing, so they take the deduction. This estimator keeps crown on the net run and lets the 10% waste absorb the small difference — on a quote, expect crown at full perimeter.
What does trim installation labor cost?
The planning figure here is $1.50 per linear foot across runs. In the worked example, 55 ft of MDF baseboard with labor prices at $148–$220 total. Crown-only jobs price higher per foot (compound miters, scaffolding), casing-only lower. Painters’ caulk-and-fill is usually a separate line — ask.
MDF or wood trim?
MDF is cheapest, paints beautifully, and dents if you look at it sternly — fine for crown and low-traffic rooms, poor for baseboard in a house with kids and vacuums. Finger-joint pine is the value standard for painted trim. PVC wins in bathrooms. Stain-grade oak is for when the wood itself is the finish — and it prices like it.
How much waste should I allow?
10% for rectangular rooms and long stock, 15% if you are new to coping joints or the room is cut up. Crown deserves the higher figure: a miscut compound miter wastes both pieces of a corner pair. Buy one extra stick of each profile regardless — dye lots and profiles get discontinued.
Does this price painting the trim?
No — this is stock plus optional install labor. Primed stock still needs caulk, fill, and two finish coats; painters often price trim painting per linear foot on top of wall work. The Paint Coverage Calculator sizes the paint itself.