How to Read Inclusions and Exclusions in a Scope of Works

Every dispute about back charges, variations, and delay claims comes back to the Scope of Works. Half of subcontractors I have worked with cannot read their own SOW with confidence. This is what to look for.

The structure of a typical SOW

An Australian commercial Scope of Works typically has six sections:

1. General provisions — preliminaries, programme, working hours, site access 2. Inclusions — what is in scope 3. Exclusions — what is explicitly out of scope 4. Specifications — materials, finishes, methodology 5. Deliverables — what gets handed over and when 6. Pricing schedule — line items and rates

The two sections most subbies skim — and where most of the money leaks — are inclusions and exclusions.

Inclusion logic — the traps

Trap 1: "Supply and install" vs "install only"

Always check this for every line item. "Supply and install" means you provide both materials and labour. "Install only" means materials come from the head contractor or another supplier.

If the SOW says "install only" and you supply the materials, you have given the head contractor free product. If it says "supply and install" and you only install, the head contractor will back charge for the missing materials.

Read every inclusion line and circle whether it is supply-only, install-only, or both.

Trap 2: BWIC

BWIC means Builder's Work In Connection. It is work the head contractor is supposed to do to support your trade — providing penetrations through walls, building chases, removing protection panels, providing hoist time.

If your SOW says "all BWIC included", you do this work. If it says "BWIC by others" or "BWIC excluded", the head contractor does it.

When BWIC is included in your scope and you did not price for it, the cost comes off your margin. When BWIC is excluded and the head contractor has not done it, you cannot complete your trade. Either situation is expensive.

Trap 3: PC items

PC means Provisional Cost or Prime Cost (used interchangeably in Australia). PC items are budget allowances for items that have not been fully specified.

A PC of $5,000 for door hardware means you budgeted $5,000. If the actual hardware comes in at $7,500, you can lodge a variation for the difference — but only if the SOW marks the item as PC.

Find every PC item in your SOW. Confirm the actual cost when supplier quotes come in. If the actual is over the PC, raise the variation immediately.

Trap 4: "By others"

The phrase "by others" means another trade or the head contractor does it — not you. Inclusions sometimes use "by others" to clarify scope boundaries. Exclusions almost always do.

If your inclusions say "supply and install ceiling tiles, ceiling grid by others" — you do not own the grid. If a back charge later arrives for grid sag or alignment, you reference this clause.

Trap 5: Quantity ranges

Some SOWs use ranges — "approximately 200 doors, with the actual count to be confirmed at site measure." If the actual count is 215, you can claim 15 extra doors. If it is 185, the head contractor can credit 15 doors back to you.

If your SOW does not specify the count, push for it before signing. Vague quantities equal disputed claims.

Exclusion logic — the traps

Trap 1: Implied vs explicit exclusions

Most subbies assume that anything not in inclusions is excluded. This is not how a head contractor reads it.

If a SOW lists 80 inclusion items and 0 exclusions, the head contractor's lawyer will argue that the listed items are illustrative, not exhaustive. Always have an explicit exclusions section that lists what is NOT in scope.

Example exclusion: "Excluded: protection of completed works, painting after install, removal of off-cuts to skip."

Trap 2: Conditional exclusions

Some exclusions are conditional. "Excluded: BWIC, except where specified in clause 4.3."

Always read the conditions. They often pull work back into your scope through the back door.

Trap 3: Defects period exclusions

Most SOWs exclude liability for damage caused after your trade is complete. Look for the wording — usually something like "Liability excluded for damage to completed works caused by following trades".

This is your defence against most back charges. Read it. Memorise it.

A reading checklist

When a new SOW lands on your desk, do this within 24 hours:

1. Read inclusions line by line. Mark supply / install / both for each item. 2. Read exclusions. Make sure they are explicit, not implied. 3. Identify every PC item. 4. Identify every BWIC reference. 5. Identify the defects rectification clause and the protection-of-works clause. 6. Note any conditional exclusions. 7. Diary the contract clause numbers — you will reference them in every variation and back-charge response for the next 18 months.

What this looks like inside TradeControl

TradeControl indexes every SOW you upload — clause-by-clause, searchable. When a variation comes in, the bot retrieves the relevant inclusions or exclusions automatically. When a back charge arrives, the defence bot pulls the relevant exclusion clauses and drafts the response.

Book a 20-minute demo

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TradeControl provides commercial support only. Not legal advice.