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Construction glossary
Construction Glossary •

Bottom-of-Chain, or Low-Tier

What is Bottom-of-Chain or Low-Tier?

Bottom-of-Chain or Low-Tier in the construction industry refers to the lowest level of subcontractors or suppliers involved in a construction project. They are at the end of the construction chain, typically providing specific services or materials as subcontracted by higher-tier companies. These can include specialized tasks like electrical work, plumbing, landscaping, or supply of construction materials. Their work is crucial as they lay the foundation for more complex tasks to be executed by upper-tier contractors. They are also bound by the contracts in place, like other members of the chain, although directly managed by mid-tier subcontractors instead of the main contractor.

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Other construction terms

Mobilization

What is Mobilization?

Mobilization in the construction industry refers to the activities and processes that are carried out to prepare for a construction project before the actual work begins. This can involve acquiring, assembling, and organizing resources, including manpower, tools, equipment, and materials needed for the project. Moreover, it encompasses planning, site preparation, setting up temporary facilities like offices or storage spaces, and obtaining necessary permits and insurances. Mobilization is crucial as it ensures smooth execution and helps to avoid potential delays. This phase often involves significant costs, which are usually included in the contract as 'Mobilization Costs'.

Guaranteed Maximum Price (GMP)

What is a Guaranteed Maximum Price (GMP)?

A guaranteed maximum price (GMP) is a financial cap used in construction contracts, representing the highest possible price a client can expect to pay for a particular project. This cap encompasses raw materials, labor, indirect costs, and a margin for the contractor’s profit. 

While offering financial predictability and safety to the client, this method can significantly impact subcontractors. To transfer a portion of the financial risk, general contractors (GCs) typically offer subcontractors fixed-price (or lump sum) subcontracts. This setup incentivizes subcontractors to adhere to budgets and timelines, as cost overruns directly affect their profit margins (unless the client was the one who requested changes). Conversely, if the project is completed under budget, subcontractors may benefit by sharing the savings with the GC. Ultimately, GMP contracts foster transparency and collaboration, promoting shared responsibility for project success between all parties involved. 

In GMP contracts where payments are tied to milestones or completion percentages, accurate pay applications—a core feature of Siteline—are crucial to getting paid sooner. Siteline also enables subcontractors to track outstanding balances and monitor their cash flow in real-time, empowering them with insights to proactively manage their financial health—which is paramount in GMP contracts. Ready to take control of your cash flow under GMP contracts? See how Siteline can help by scheduling a demo today.

Mortgage

What is a Mortgage?

A mortgage, within the framework of the construction industry, is essentially a loan secured by a real property through the use of a mortgage note to evidence the existence of the loan and the encumbrance of that realty. This serves a crucial financial function during the building process as it allows homeowners or builders to purchase land or property without needing the full amount upfront. In most cases, a banking institution or lender offers the borrower a certain sum to buy a property, the borrower then repays this sum, typically monthly, with added interest, over a defined period. The mortgage ties the obligation of repayment to the property itself. Hence, when a mortgage loan is used for construction of a new property, the funds are dispersed to the borrower as work on the construction project proceeds. In the event that the borrower defaults on their mortgage payments, the lender has the right to take possession of the property, in a process known as foreclosure.

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