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Fence Tender Technical Deviation Schedule

A technical deviation schedule states where an offer differs from the tender requirement. It protects the comparison between bidders and gives the authorised reviewer a place to accept, reject or request evidence for each change. It should be short enough to use and precise enough to prevent ambiguity.

Green welded mesh panel attached to a square post with a mounting bracket
An alternative bracket needs its own drawing, fit check and evidence in the deviation schedule.

Use one row for one decision

Give each departure an identifier. Record the exact requirement and source, the offered alternative, the consequence and the evidence. Keep the commercial effect separate from the technical decision: a price saving does not itself establish equivalence.

ID Required Offered Decision needed
D01 Drawing F03 revision B fixing arrangement Alternative bracket with drawing A17 Review fit, loading and relevant evidence
D02 Finish system specified in coating schedule Different coating product Review exposure suitability and maintenance
D03 Gate assembly G02 including hardware Leaf and posts only Resolve omitted hardware and installation scope

These are illustrative entries, not approved substitutions. The actual schedule should quote the project's reference and clause or drawing detail without copying an entire specification into the table.

Make the impact measurable

Suppose an illustrative layout has 100 equal bays over 250 m. An offered 2.4 m module would not preserve that layout: 250 ÷ 2.4 = 104.1667 modules. Four additional full modules still leave a closing condition. The designer must resolve the setting-out, supports and openings before anyone describes the change as equivalent.

The calculation identifies a geometric consequence. It does not imply that either module is a FencingWise standard size or that all 250 m can be divided without corners or gates.

Separate three possible outcomes

An accepted departure has a named decision, date and applicable revision. A rejected departure leaves the original requirement in place unless the tender is revised. A clarification request remains open; it should not be counted as accepted merely because a revised brochure was submitted.

If an alternative changes a certified assembly, check its coverage with the issuing body or certificate holder through the proper process. LPCB's product listings can help identify the listed configuration. A similar product name or the same material grade is insufficient evidence of identical certification scope.

Grey metal mesh gate with framed leaf and adjacent fence panels
An accepted gate change must carry through the drawing, hardware schedule and installation record.

Carry accepted changes into every downstream document

  1. Update the accepted drawing and component schedule.
  2. Revise the quotation scope and any affected price or delivery assumptions.
  3. Issue the accepted revision to manufacturing and inspection.
  4. Identify changed items in packing and installation information.
  5. Include the authorised departure in the handover record.

Skipping the third step can result in the factory building the original version after the buyer has accepted the alternative. Skipping the fourth can leave installers using superseded hardware details.

Review the register before purchase-order release

Count the open items, but also identify their effect. One unresolved gate safety interface may matter more than several minor document corrections. Assign a responsible reviewer and required decision point to each open item.

Use the specification and test-report gap guide when the departure concerns missing or mismatched evidence. Keep ordinary commercial qualifications in the offer, while this schedule carries the technical decisions that affect what will actually be supplied.