Short answer: Lead time is project-specific. Separate it into drawing approval, glass and hardware production, delivery, installation and sealant cure; ask the supplier to state each stage and the assumptions that could change it.
This is the part that tends to get lost in showroom comparisons: the glass is only one component. The finished opening, water path, hardware limits and installation boundary decide whether the result works day after day.

| Decision area | What to record |
|---|---|
| Design stage | Select layout, door handing, support zones and interfaces |
| Finish stage | Complete waterproofing, screed, kerb and tile |
| Survey stage | Measure level, plumb, square and finished clearances |
| Handover | Test operation, water management and care instructions |
A useful proposal links each choice to a drawing or product limit. If a door, panel or fixing changes, recheck support, clearances and seals before approval. Descriptions such as “heavy duty” are not a substitute for a model and rated range.
The approved record should show finished dimensions, wall and floor variation, glass thickness, door handing, hardware, finish, fixing substrate and interface responsibility. Once tempered glass is made, site cutting and drilling are not acceptable adjustments.
Separate budget dimensions from production dimensions. Plans can start a discussion; finished-site measurements and an approved drawing should control custom fabrication.
For How Long Does It Take from Measurement to Shower Installation?, start with the condition that would make the first answer wrong. Converting a framed unit usually leaves fixing holes and different glass dimensions. Scan or verify fixing zones and hidden services before drilling.
Add the drawing date so an older plan cannot be mistaken for the approved one. Sealant cure can be compromised by early use or wet substrates. That observation should appear on the drawing or survey sheet instead of being left for the installer to discover.
Inspect delivered glass before it is carried into the bathroom. Keep units consistent and write millimetres rather than mixing systems. Together, these two checks connect the room layout to a fabricatable panel rather than treating the enclosure as loose furniture.
Stone veins and hollow tiles need more care than a generic drill instruction suggests. Approve door handing, gaps, hardware and finish on one drawing. The approved quotation should say what happens if the survey changes the configuration.
Keep units consistent and write millimetres rather than mixing systems. A component schedule makes later maintenance and replacement far easier. The result is a decision another person can review without relying on the original conversation.
Before releasing the supplier’s option, photograph the wet-area boundary. Separate provisional sizes from final sizes.
One practical risk is that Drilling without substrate information risks both brittle finishes and hidden services. Test operation and normal water management at handover. The result may alter both price and programme.
When finishes are ready, State whether the room is occupied, under renovation or ready for handover. Ask the supplier to flag any assumption that cannot be checked before order. Do not leave the decision in an unlabelled message.
For the question “How Long Does It Take from Measurement to Shower Installation?”, the goal is not to collect more options; it is to arrive at one buildable arrangement. A concise drawing and component list do that better than a long sales description.
Waterproofing, screed, kerb and tile should form a coherent wet-area system before custom panels are released. BCA guidance is clear that tiles and grout alone are not the waterproof barrier.
At handover, operate every panel and run a controlled water test that respects the intended spray direction. Record any limitation of an open or frameless configuration instead of promising absolute watertightness.

The practical value of an industry guide is not a single magic dimension; it is the discipline of matching panel geometry, hardware, substrate and use. Keep that chain visible in the approval record.
Product families are starting points rather than standard answers. See the ForgeWin shower enclosure range for the relevant operating idea, and the ForgeWin manufacturer page for customisation context.
Lead time is project-specific. Separate it into drawing approval, glass and hardware production, delivery, installation and sealant cure; ask the supplier to state each stage and the assumptions that could change it.
For custom work, take final measurements after the relevant tiles, kerb and finishes are complete. Support zones and layout must be planned earlier, but production dimensions should reflect the finished opening and its actual level, plumb and square.
Send a dimensioned plan, straight-on and corner photos, project location, preferred door action, glass look, hardware finish, finished or unfinished status, installation scope and any access or accessibility constraints.
Lead time is project-specific. Separate it into drawing approval, glass and hardware production, delivery, installation and sealant cure; ask the supplier to state each stage and the assumptions that could change it. The reliable next step is a measured drawing and an itemised proposal that names the glass, hardware, finish, installation scope and limitations. The cited dimensions and practices are reference points, not automatic approval for a particular project or jurisdiction.
Technical note: Requirements vary by country, building type and project. Confirm the current local code, supplier data and site conditions before fabrication or installation.