---
title: 2633 Tamplin Field Redevelopment — Site Structures — Job Log
job_number: 2633
type: log
purpose: Append-only one-liners. Never edit prior entries.
created: 2026-05-22
created_by: claude-code
---

# 2633 Tamplin Field Redevelopment — Site Structures — Job Log

## 2026-05-18
- 2026-05-18 — claude-code — RFQ intake. Solutions Plus Built Pty Ltd (Christian Natividad, Estimator) — concrete site structures for the Tamplin Field Redevelopment, Hobartville NSW (end client Hawkesbury City Council). Scope: SS1 tiered seating, SS3 multi-use exercise wall, SS4 concrete pyramids ×3, F5 Chillout Tree footings. Bid due Fri 22/05/2026 COB.
- 2026-05-18 — claude-code — Ran the 10-step ContractorOS skill chain (project-indexer → requirements-extraction → drawings-analyser → data-structurer → construction-takeoff → cost-lookup → bid-planner → sub-quote-analysis → line-item-pricing → LoO). v1 priced at $241,927 ex GST on a full supply-and-install basis.

## 2026-05-20
- 2026-05-20 — claude-code (Rocky line-by-line review) — Pricing basis corrected: LFCS scope = **labour + formwork only**. All permanent materials (concrete, reo, embedded items), all groundworks, all piling, all plant supplied by Solutions Plus / Principal. v1 $241,927 → v2 $214,000 → v3 labour-only $112,000.
- 2026-05-20 — claude-code — Identified the skill chain skipped `schedule-builder`. Ran it — full WBS built. Corrected hours via review: SS1 formwork 105→200 (Liam), reo +25%, foreman moved to direct (on tools — was double-counted), prelims stripped $42.7k→$13.3k, travel/distance loading $25k added (Hobartville ~1.5 hr each way rush hour). Position $166,300 ex GST.
- 2026-05-20 — claude-code — Cross-job review of 2635 + Hus (Hasibul) 2629 Erskine Park. Formwork temp-works gap found — LFCS supplies formwork, needs props/ties/gear. Rocky decided BUY the gear. Gmail draft to Pedro Sferrazza (Acrow) for purchase prices.

## 2026-05-21
- 2026-05-21 — Acrow (Pedro Sferrazza) replied with the purchase quote — consumables firm-priced (ply $51.82, LVL 150×75 $93.94, ties etc); props/soldiers in attached images. Confirms the formwork temp-works estimate.

## 2026-05-22
- 2026-05-22 — claude-code (Rocky + Liam) — Final pricing locked. Margin 15%. Complexity: +50% rate on all formwork AND all reo (replaces the 25% blanket provision). SS3+SS4 formwork manhrs +70%. Reo manhrs +100% (string-line setup on bespoke shapes). Void former install labour added. Formwork temp-works $13,500 (internal-hire basis) folded in. **FINAL LUMP SUM $232,700 ex GST / $255,970 inc GST.**
- 2026-05-22 — claude-code — Outbound docs finalised: priced BoQ (Solutions Plus template, clean — no internal-loading wording, 17-point itemised exclusions schedule) `02a/2633-Site-Structures-BoQ-PRICED-v7-CC-2026-05-22.xlsx` + Letter of Offer `02a/2633-LFCS-LoO-v7-FINAL-2026-05-22.docx`. Both converted to PDF. Internal estimate package + WBS v2 workbook filed in `02b`.
- 2026-05-22 — claude-code — Submission email drafted to Christian Natividad cc Liam (Gmail draft). Rocky to attach the 2 PDFs + send COB 22/05.
- 2026-05-22 — Open: design-drift contingency (drawings "For Tender" not IFC); F5 shelter lifting; SS2 Mounded Seating walls priced separately as provisional Alternate A pending RFI; labour rate $126 vs Hus $90 unreconciled.

## 2026-05-29
- 2026-05-29 — claude-code (Rocky) — Christian Natividad asked duration of works per structure + formwork manufacture lead time (thread on the $232,700 submission). Durations derived from buildup v3 (labour hrs + formwork m², ~3-person crew, day shift, sequenced around SP groundworks/piling): SS1 ~2 wk, SS3 ~2.5 wk, SS4 ~1.5 wk, F5 ~2 days, whole package ~8 wk. Formwork lead ~3 wk from award + IFC + deposit. Caveman reply drafted — **Rocky sent it.** Correspondence record filed `06a - Inbound Outbound/2026-05-29_Durations-Formwork-LeadTime.md`. First time durations committed to head contractor — locks 8-wk delivery expectation.
- 2026-05-29 — Note: my reply caveated formwork lead on the Acrow purchase quote, but that quote already landed 21/05 (Pedro Sferrazza) — gear firm-priced. Lead is still an estimate (bespoke shutter fab + temp-works design/CPEng), procurement side already locked. `formwork-temp-works-costing-PROVISIONAL` doc is stale — should be re-flagged CONFIRMED.