A layout change is easy to make in a drawing and harder to trace once materials have been ordered. A van build decision log keeps the old choice, the proposed change and the next check together. Use it to decide which drawing and shopping list you can rely on for the next job.
This is a planning method, not an engineering approval process. Start with the blank decision-log worksheet. If you are still choosing the basic arrangement, begin with the usable-space guide first; this log is for managing changes after you have an initial layout.
Give Each Change Its Own Entry
Write one specific decision per row. “Change the kitchen” hides several choices. “Move the drawer unit toward the rear” gives you something you can compare with the current drawing. Record a change number, date, the current drawing revision and the affected part of the van.
Keep the existing choice visible. Replacing the old measurement with a new number can erase the reason a cut list no longer matches a drawing. Instead, record the previous choice, the proposed choice and why you are considering it. Leave unknown measurements blank and mark them as needing verification.
Separate A Reason From A Check
A reason might be easier storage access, a different component or a clearer walking route. A check is the evidence you need before accepting the change. Link the measurement record, relevant component documentation or dated mockup photograph in the same row. An attractive render is useful for communication, but it is not evidence that a drawer opens or a component can be removed.
CVF's Day 56 roof-rack journal illustrates why a recorded status matters: the entry identifies work that was still outstanding. Keep “proposed,” “checked” and “finished” separate in your own log, rather than allowing a shopping-list check mark to stand for all three.
Trace The Pieces That Depend On The Decision
Before changing a dimension, identify the connected items. A cabinet move may affect a neighboring opening, a panel size and the quantity of framing material. Record those dependencies before editing the model. This is a list of things to revisit, not a claim that any one arrangement is safe or compatible.
| Area | What To Record |
|---|---|
| Measurements | Which measured surfaces and reference points change? Which values still need checking in the van? |
| Access | Which door, drawer, lid, passage or removal route must be tested again? |
| Files | Which model, sketch, cut list or bill of materials will become outdated? |
| Purchases | Which proposed or existing order depends on the old choice? Record actual quoted costs separately from estimates. |
| Technical review | Does the change involve equipment, structure or a safety-critical system requiring exact manufacturer instructions or qualified review? |
Work Through One Hypothetical Change
Suppose your current drawing places a storage drawer beside the bed. During a mockup, you find that its opening conflicts with another item. Log a proposal to move the drawer; do not quietly shorten it in the model and continue ordering from the old cut list.
- Record the starting point: Name the current model revision and identify the affected drawer. Describe the conflict and link your photograph or measurement note.
- Describe the proposal: Record the intended move without presenting unmeasured dimensions as confirmed values.
- List the knock-on work: Recheck the opening, neighboring footprint, mounting concept, panel list and any affected purchase.
- Choose the next check: Use the full-size mockup checklist to record what you observe. A clear model view alone does not close the check.
- Record the outcome: Accept the proposal, revise it or keep the original arrangement. Preserve the reason whichever choice you make.
The example has no prescribed drawer size, hardware choice or load rating. Those depend on the actual design and equipment. Treat any technical dependency as open until the appropriate evidence is available.
Name The Files You Intend To Use
After accepting a change, save a new model revision and update the related lists together. A useful filename identifies the project, date and revision; choose a format you will actually use consistently. Keep the earlier version so you can explain what changed. Follow the SketchUp layout guide for the modeling workflow.
Before the next order or cut, compare the drawing revision with the cut list and bill of materials. If one still refers to the earlier arrangement, hold the affected work while you reconcile it. The decision log should identify that dependency explicitly, rather than leaving it in a message or in memory.
Close The Entry With Evidence
Use a small set of statuses you can explain: Proposed, Needs Check, Accepted, Rejected and Implemented. “Accepted” records a decision; “Implemented” records the later work. Add the supporting file or note for each transition. If the physical result differs from the accepted drawing, open another entry and keep the record of the earlier decision.
You do not need to log every spelling correction. Use the log for changes that affect fit, access, components, materials, cost or the sequence of work. Review the open rows before starting the next project in your van build plan.
Download The Blank Decision Log
Ready to organize the next job? Pair the log with the starter tool checklist and the CVF layout and design resources. Check the listed contents and compatibility of any resource before buying; an example model still needs to be checked against your own van.