Plan the overhead crane, maintenance workshop and visitor corridor

New docs/crane-workshop-tours.md: a 5 t single-girder EOT crane over the
whole production compartment (stops at the warehouse fire wall), a
machine door and crane-served workshop/machine bay at the ramp end, and
a glazed ground-level visitor corridor along the car-park elevation with
stations in process order, its own air and acoustic glazing so tours
need no PPE. Covers what each changes in the shell (crane-ready frame,
hook height under the 7.0 m eave, no full-height cross walls in the
crane zone, room lids and crane hatches), safety, costs and open
decisions.

Propagated: construction RFQ (crane-ready frame, new section 1c, machine
door, accessible 1:12 entrance now required), scale zone table (+210 to
280 m2, total ~1,400 to 2,000 m2), facility security, worker safety,
roadmap items 9 and 15, total investment added-scope table, README.

docs/finance/phase1-construction-rfq.md

@@ -14,7 +14,7 @@ zoning is unverified, so this is a budget number, not a bid.
 
 | Item | Spec |
 |---|---|
-| Type | Single-storey steel portal frame (PEB), no mezzanine, no crane |
+| Type | Single-storey steel portal frame (PEB), no mezzanine, **crane-ready: one 5 t EOT crane runway over the production compartment** (see §1c) |
 | Footprint | **60 × 25 m = 1,500 m²** |
 | Roof | Monopitch, **10° pitch**, roof plane **1,523 m²**, low eave **7.0 m**, high side **~11.4 m** (both above finished floor) |
 | Roof load | Carries a rooftop PV array (~425 modules, ~247 kWp): add **~20 kg/m²** dead load plus wind uplift on racking; PV mounts on the purlins |
@@ -22,7 +22,7 @@ zoning is unverified, so this is a budget number, not a bid.
 | Wall quantities | Masonry/precast dado **170 m perimeter × 2.5 m = 425 m²** (impact, security, washdown), internally insulated so the envelope stays continuous; **sandwich panel above dado ~1,140 m²** |
 | Floor | **200 mm** ground-bearing slab rated **30 kN/m² UDL**, provision for machine plinths, power-floated finish |
 | Finished floor level | **+1.2 m above surrounding ground** — see §1b |
-| Doors | 2 loading doors (insulated sectional) as **sealed dock positions**: dock shelters/seals plus dock levelers, so the docked trailer acts as the airlock and doors never open to outside air. Personnel entrances with vestibule; fire exits per code |
+| Doors | 2 loading doors (insulated sectional) as **sealed dock positions**: dock shelters/seals plus dock levelers, so the docked trailer acts as the airlock and doors never open to outside air. **1 machine door** (~4.5 × 5.0 m insulated sectional, fully sealed) at the ramp end, see §1c. Personnel entrances with vestibule; fire exits per code |
 | Interior | **Shell only — no internal fit-out** in this price (clean room, offices etc. priced later) |
 
 On the slab spec: 30 kN/m² (3 t/m²) is the standard industrial warehouse
@@ -93,13 +93,37 @@ Two things deliberately not in the model, to be priced anyway: **handrails**
 to both sides of every flight and to the ramp, and **door thresholds**.
 
 The ramp is 1:10, which suits forklifts and vans but is **not** an
-accessible gradient. If a step-free staff entrance is required, that is a
-separate 1:12 ramp with intermediate landings — flag it now if wanted.
+accessible gradient. **A step-free visitor entrance is now required**: the
+plant will run public tours through a glazed visitor corridor (see
+[crane, workshop and tours](../crane-workshop-tours.md)). Price a **1:12
+ramp at the main entrance**, about 14.4 m of run for the 1.2 m rise plus
+intermediate landings, with handrails both sides.
 
 Exit positions are provisional: they are placed for reasonable escape
 distances on a 60 × 25 m footprint, but final numbers and locations follow
 the fire strategy and the racking layout, neither of which is fixed.
 
+### 1c. Overhead crane and machine door
+
+The building must carry an overhead crane for moving machines in, out and
+to the maintenance workshop. Background and the reasoning behind each
+figure: [crane, workshop and tours](../crane-workshop-tours.md).
+
+| Item | Spec |
+|---|---|
+| Crane | Single-girder EOT, **5 t SWL** (3.2 t as an alternative price), span the full building width (~24 m between rail centres), electric wire-rope hoist with inverter drives, radio remote, light duty class |
+| Runway | Both long walls, over the **production compartment only**: from the ramp-end wall to the production/warehouse fire wall, **~40 to 48 m** (estimate, set by the warehouse depth). Brackets or stepped columns, runway beams, rails, end stops, enclosed conductor rail |
+| Frame | Designed for crane wheel loads and braking forces from day one |
+| Hook height | **State the achievable hook height under the 7.0 m low eave.** Price **+1.0 m on the low eave** as an option |
+| Machine door | ~**4.5 m wide × 5.0 m high** insulated sectional, fully sealed, at the ramp end; the runway reaches its inside face |
+| Machine bay slab | The bay inside the machine door rated for a rigid truck reversing in: **wheel point loads**, not only the 30 kN/m² distributed rating |
+| Ramp | Confirm the 10.5 m × 4.5 m 1:10 ramp and its transitions take a rigid truck reversing up to the machine door |
+
+The crane itself may be quoted by a specialist sub; the runway, frame
+premium and machine door belong in the shell price. Inside the crane zone
+no wall may run full height across the building; internal partitions are
+fit-out and are not in this price.
+
 ## 2. Detached utility yard
 
 Simple industrial enclosures beside the main building.
@@ -179,6 +203,9 @@ transformer (PEA), and land works beyond normal grading.
   way.
 - **Racking height** in the warehouse zone: undecided; drives the fire
   design, not the shell, but they may ask.
+- **Crane**: achievable hook height at the 7.0 m eave, the frame premium
+  for crane loads, and whether they supply the crane or price a
+  specialist sub (§1c).
 - **Permits**: ask whether the price includes permit drawings by a licensed
   engineer for the building permit and Ror.Ngor. 4 factory license — rough
   shell prices usually don't.
@@ -189,6 +216,8 @@ transformer (PEA), and land works beyond normal grading.
   above — not the bare-shed spec
 - Separate rates for **heavy-duty** and **general** paving
 - A separate rate for **mineral-wool core** panel
+- The **crane package** separately: runway and frame premium, machine
+  door, the crane itself, and the hook height they achieve
 - A lump figure for the rest of the site works
 - The foundation/geotech assumption behind all of it
 

docs/finance/total-investment.md

@@ -33,6 +33,19 @@ July 2026; the underlying THB estimates are unchanged, because EUR/THB at
 | Contingency 15% | ~0.6M – 1.2M | ~20M – 38M | |
 | **Total, full vision** | **~4.7M – 8.9M USD** | **~155M – 294M THB** | |
 
+### Added scope, not yet in the roll-up
+
+Decided after the roll-up above was compiled; carried here as estimates
+until the next re-base folds them into the blocks (the building and
+software lines, and the contingency on top).
+
+| Block | USD | THB | Basis |
+|---|---|---|---|
+| Overhead crane, runway, frame premium, machine door | 97k – 227k | 3.2M – 7.5M | estimate, [crane, workshop and tours](../crane-workshop-tours.md) |
+| Maintenance workshop and machine bay fit-out | 30k – 76k | 1.0M – 2.5M | estimate, same |
+| Visitor corridor and accessible entrance | 67k – 148k | 2.2M – 4.9M | estimate, same |
+| **Added so far** | **~195k – 450k** | **~6.4M – 14.9M** | about 5 to 6% on the full-vision subtotal |
+
 ## Phased entry
 
 A credible launch phase is far smaller, roughly **1.7M to 2.9M USD