Timber blanks · specification · CNC preparation
What does this service do?
Timber blanks for CNC should be specified from the finished part, species, dimensions, allowance, grain direction, drying condition and permitted defects. A single moisture reading cannot guarantee no movement; service environment and measurement method also matter.
When is this service suitable?
- Buyers needing blanks from a cutting list for turning, milling or carving.
- Orders that must define species and acceptable defects before machining.
- Projects separating material and machining costs.
Confirm these points before ordering
- Stock, grade, documents and origin must be confirmed for the actual lot.
- Moisture needs a method, measurement location and environment; it is not a no-movement guarantee.
- Blank dimensions need allowance for holding and finished geometry.
Machining service images
Images help identify the part category and surface to discuss. Drawings, material, and inspection criteria still govern a specific order.
What should you send for review?
Clear inputs make quotations and approval samples easier to compare. Mark missing items for workshop review instead of assuming them.
Size list
Send finished or blank dimensions, quantity and units. State the next CNC operation.
Material requirement
Specify species, desired grade or appearance and unacceptable defects.
Service environment
State indoor/outdoor use, delivery region and required documents.
From request to delivery
1. Review the finished part
Determine part type, grain direction, mating features and required allowance.
2. Confirm material lot
Confirm stock, species, dimensions, condition and actual lot documentation.
3. Prepare blanks
Cut or plane to the agreed scope while retaining allowance for the next operation.
4. Inspect and deliver
Inspect representative or individual blanks as agreed, then label and package them.
Factors that affect the quotation
Species and grade
Supply, grade, color, grain and defect allowance affect material cost.
Dimensions and yield
Large sizes, mixed dimensions and grain selection change material yield.
Preparation and inspection
Cutting, planing, sanding, moisture checks, sorting and packaging must be defined in scope.
TTW can confirm price, schedule, sample fees and warranty scope only after reviewing the order data. This page is not a quotation or a technical guarantee for a specific part.
What should sample approval and inspection cover?
- Correct species and confirmed lot.
- Dimensions and allowance match the list.
- Defects and appearance recorded against the agreement.
- For moisture checks, record instrument, location, time and result rather than only “passed”.
Frequently asked questions
Does 10–12% moisture guarantee no wood movement?
No. Stability also depends on species, service environment, construction, grain, drying history, storage and part design. Readings must be interpreted in context.
Can blanks be planed to final dimensions?
It depends on the next operation. CNC often needs allowance for holding and cleanup, so blank dimensions should be agreed with the machinist first.
