About this template
An eight-page reference guide in PDF on the hull block construction method, written for production planners, newbuild planning managers and project teams who need to understand how block division, pre-outfitting and erection sequencing connect to the schedule. It is a reading document, not a form.
What's inside: an executive summary followed by 13 sections. It starts with how block construction developed and the hierarchy from parts and panels to blocks, grand blocks and modules, then sets out seven criteria for deciding block boundaries, such as crane capacity, transport limits and interface management. It then covers fabrication steps (cutting, panel lines, block assembly and fairing, surface preparation and coating), four levels of pre-outfitting, block transport and pre-erection area management, and erection sequencing rules such as building bottom-up, setting the engine room early and keeping the partial hull stable. A section outlines optimisation methods (critical path scheduling, mixed-integer programming, discrete event simulation and metaheuristics), followed by alignment, welding and NDT during erection, 4D scheduling and ERP links, common problems with mitigations, and a short reading list. A worked example describes a possible block breakdown for a 90 m offshore patrol vessel.
How to use it: read sections 3 and 7 before drafting a block division or erection sequence, use section 10 as a checklist when reviewing a yard's erection plan, and pair the guide with the Block Erection Sequence Plan template when you move from principle to an actual sequence table.
Limits: tolerances and tonnages quoted in the guide are general indications, not data you can apply to your own yard. Verify them against your class rules and your own production records.
