Ordering sandwich panels: how to prepare a comparable quotation request
Sandwich panels
A sandwich panel enquiry should define a particular delivery, rather than just an area and a core thickness. The buyer needs to know whether suppliers are quoting for the same product, quantities and services. This guide builds an enquiry record from the panels’ intended use to the exclusions in each quotation. It explains where to record design requirements, how to separate the base order from alternatives and how to manage subsequent clarifications. It does not replace structural selection or assessment of required performance. The aim is a clear purchasing basis that leaves missing information visible and prevents a lower total from concealing omitted parts of the order.

Define the use and design status first
One table can hold the enquiry, provided changes have a defined place. Columns headed “required”, “offered” and “to clarify” help distinguish compliance with the specification from a proposal for a different solution.
Begin by stating whether the order concerns wall cladding, a roof covering or another arrangement specified by the design. Give the reference and date of the documentation behind the enquiry. If panel selection is incomplete, identify the request as an exploration of options. Do not present an initial idea as an approved specification merely to obtain a price sooner.
Assign requirements to a specific line item
Identify the panel type, core, thickness and both facings. Separate colour from coating type and indicate which face will be internal. Available combinations depend on the particular product. “White PIR panel” leaves too many possibilities to treat two replies as quotations for an identical element.
Record thermal, fire or acoustic requirements with their design reference, rather than as isolated keywords. Request the document supporting the offered solution for the required application. If a supplier proposes a different core or fixing arrangement, treat it as an alternative requiring assessment. A similar commercial name is not sufficient confirmation of compliance.
Align quantities and the pricing basis
Where an agreed panel schedule exists, list quantities as pieces of specified lengths. For an area figure, state the width used to calculate it and how the supplier prices the item. Do not combine façade area, ordered panel area and material left after cutting into one unexplained total. They answer different questions.
Show any order allowance separately and explain its purpose. It may cover planned cutting or an agreed reserve, but should not result from automatically adding the same allowance to every project. If there is no panel layout yet, label the quantity as an estimate. Checking it before confirming delivery remains an outstanding task.
Separate accessories and services
Give flashings, fasteners and seals separate lines describing their scope. State which items the installer selects and which belong in the material delivery. Avoid an undefined “accessories package” without an accompanying list. The same phrase can describe substantially different contents in two quotations.
Record delivery arrangements alongside the materials without hiding them inside a unit price. Agree the address, unloading arrangements and responsibility for the necessary equipment. Clarify whether the quotation covers a single delivery or several agreed batches. Transport should not be assumed to include unloading at the eventual installation position.
Mark differences instead of comparing totals alone
Transfer replies into matching rows while retaining currency, unit and whether prices include tax. Mark a line without a price as unpriced until its status is clarified. Missing information is not a zero cost. Only after the scope has been checked can the total show a price difference rather than a difference between a full offer and a partial one.
Collect departures from the enquiry in one place. For each proposal, record what changes, who must review it and whether other items are affected. A different panel type can require the complete package to be checked again, not merely its price difference. Retain the base option so later negotiations do not erase the original requirements.
Confirm one version of the order
Before ordering, request one confirmation containing the agreed schedule and accepted clarifications. Identify its revision and date. Put any unresolved correspondence item on an open-issues list. Silence after a revised enquiry is sent should not be treated as confirmation that the other party has incorporated the change into the order.
Use the approved schedule when the delivery arrives, not the first indicative quotation. Compare identifiers, piece counts and documents, recording discrepancies against the relevant line item. Photographs and a clear written record help subsequent clarification. Delivery checking is a further purchasing step; it does not replace assessment of the completed cladding installation.
Free quote
What to include in your enquiry
Tell us how you plan to use the material, the dimensions and the quantity you need. Include the thickness, grade or variant name, along with the delivery town or your preferred collection branch. For a specific product, add its name or a link to the product page. We will reply to the email address you provide to discuss availability and the terms of your order.
More from the building guide
The designations EI and REI describe how a wall or roof performs when exposed to fire. Each letter identifies a function and…
The instructions for your roof covering tell you where PV mounts may be fitted, how to seal penetrations and how to protect…
After a sandwich panel home is completed, the owner needs information about the envelope actually installed, its connections and its care requirements.…
Sandwich panels can form the walls and roof of a home, but the panels alone do not make a complete building system.…
The fixings for a photovoltaic array must suit the specific roof and the loads it will carry. Metal tile roofing, trapezoidal sheets…
A building envelope must limit heat loss and meet the building’s safety requirements. When choosing sandwich panels, consider those two tasks together.…
Renovating an old industrial building need not mean replacing it. Sandwich panels can provide a new outer skin and insulate the walls…
The delivery date for a large machine helps determine the sequence for installing sandwich panels. The machine must get inside, turn and…



















