Before ordering a large item online, match the seller's product details to a measured path through your home. The FTC recommends recording the manufacturer or model number, size, shipping fees, total cost, shipping promise, and return terms. NIST identifies the meter and related metric units for length. Use one stated unit for every route measurement, and pair each reading with a labeled photo of that location.
Quick Answer
Record the seller-listed model, size, total cost, shipping promise, and return policy. Add a labeled photo for each doorway, hallway turn, stair, or elevator you measure, and write the unit beside every reading. Ask the seller which packaged dimensions and delivery conditions apply, then keep the written reply with the order record.
Capture the Seller's Product and Cost Details
Start with the information that identifies the item. FTC guidance recommends noting the manufacturer or model number and details such as size, color, and shipping fees. Record the seller-listed size exactly as shown, including its unit, instead of converting it without preserving the original listing. Keep the model reference next to the size so a later message stays tied to the same item.
The FTC also recommends learning the total cost, including shipping, handling, delivery, taxes, and other fees. Record that total separately from the item's physical dimensions. Add the company name, website, item ordered, order date, and amount paid to the same purchase sheet. Keep those fields together as the transaction record described in the FTC guidance.
- Record the manufacturer or model number and seller-listed size.
- Write the unit beside every listed dimension.
- Keep total cost and physical dimensions in separate fields.
Build a Labeled Route Record
NIST identifies the meter with the symbol m and lists metric relationships among millimeters, centimeters, and meters. Use a consistent unit within the route sheet. Record the usable opening at each location you want to compare, and add the unit to the written reading. Preserve the original seller unit beside any converted value.
Add one photo for each measured doorway, hallway turn, stair, elevator, or other route point. Write a short location label and the related measurement beside the photo. Use the images as a map of your own readings, not as evidence of a dimension the seller never supplied. Record an unresolved field instead of guessing at missing package details.
- Identify each route point with a short location label.
- Add the measurement and unit beside its photo.
- Record missing packaged dimensions as a seller question.
Compare the Record with the Delivery Promise
FTC guidance says sellers must ship items as promised in their ads. Save the company's shipping promise and the date it made that promise. Ask the seller in writing whether the listed dimensions describe the item, its package, or both. Keep the response with the order so the route sheet uses the dimension the seller actually confirmed.
Use the seller's confirmed size and your labeled route readings for the comparison. Record any location that still needs clarification before placing the order. Keep all email, text, and other communication with the company. This communication record belongs beside the shipping promise rather than inside an unlabeled photo folder.
- Save the advertised shipping promise and its date.
- Ask whether listed dimensions describe the item or package.
- Keep the seller's written dimension and delivery replies.
Review Return Terms Before Ordering
The seller's site must state whether an item can be returned for a full refund. FTC guidance recommends checking who pays return shipping, how many days are available for a return, and whether a restocking fee applies. Record those terms before ordering a large item. Keep the saved policy beside the route record and total-cost entry.
Return rules for sale items may differ, especially for clearance merchandise. Save the policy that applies to the actual listing instead of assuming the store's general policy controls. Keep the seller's return policy, shipping promise, communications, and payment statements with the purchase record after the order is placed.
- Record the return deadline and who pays return shipping.
- Check for a restocking fee and sale-item policy.
- Keep the policy version tied to the actual order.
Decision Worksheet
| Check | What to do | Record |
|---|---|---|
| Capture the Seller's Product and Cost Details | Record the manufacturer or model number and seller-listed size. | Record pass, review, or follow-up for capture the seller's product and cost details. |
| Build a Labeled Route Record | Identify each route point with a short location label. | Record pass, review, or follow-up for build a labeled route record. |
| Compare the Record with the Delivery Promise | Save the advertised shipping promise and its date. | Record pass, review, or follow-up for compare the record with the delivery promise. |
| Review Return Terms Before Ordering | Record the return deadline and who pays return shipping. | Record pass, review, or follow-up for review return terms before ordering. |
FAQ
Should I compare item dimensions or packaged dimensions?
FTC comparison guidance says to record the product's model and size, but the listing may not answer every delivery question. Ask the seller in writing which dimensions describe the item and which describe its package. Keep that response with the route measurements.
Which seller records belong with the route photos?
Keep the company name and website, item ordered, order date, amount paid, return policy, shipping promise, company communications, and payment statements. Add the model, listed size, total cost, and shipping fees so the photos remain tied to the exact purchase.
Primary Sources
Everyday Fit Check provides general measurement and planning information. The exact product manual, seller terms, building rules, and qualified installer guidance control the final decision.