Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2021
Accounting Policies [Abstract]
Segments	Segments We offer an integrated solution to our customers by providing manufacturing, supply, and installation of a full range of structural and related building products directly to homebuilder customers. We manufacture floor trusses, roof trusses, wall panels, stairs, millwork, windows, and doors. We also provide a full range of construction services. These product and service offerings are distributed across our approximately 550 locations operating in 39 states across the United States. Following the merger with BMC Stock Holdings, Inc. on January 1, 2021, which is discussed in Note 2 to these condensed consolidated financial statements, the Company reorganized the structure of its internal organization. Given the span and depth of our geographical reach, our locations are organized into three geographical divisions (East, Central, and West), which are also our operating segments. Our operating divisions are organized on a geographical basis to facilitate a disaggregated management of the Company and to respond to the local needs of the customers in the markets we serve. All of our segments have similar customers, products and services, and distribution methods. Due to these similarities, along with the similar economic profitability achieved across all our operating segments, we aggregate our three operating segments into one reportable segment. Centralized financial and operational oversight, including resource allocation and assessment of performance on an income before income taxes basis, is performed by our CEO, whom we have determined to be our chief operating decision maker (“CODM”). The accounting policies of our operating segments are consistent with the accounting policies described in the Notes to Consolidated Financial Statements included in our Form 10-K. Since the Company operates in one reportable segment, the primary measures reviewed by the CODM, including revenue, gross margin and income before income taxes, are shown in these condensed consolidated financial statements.
Business Combinations	Business Combinations When they meet the requirements under ASC 805, Business Combinations, merger and acquisition transactions are accounted for using the acquisition method, and accordingly the results of operations of the acquiree are included in the Company’s consolidated financial statements from the acquisition date. The consideration transferred is allocated to the identifiable assets acquired and liabilities assumed based on estimated fair values at the acquisition date, with any excess recorded as goodwill. Transaction-related costs are expensed in the period the costs are incurred. During the measurement period, which may be up to one year from the acquisition date, the Company may record adjustments to the assets acquired and liabilities assumed with the corresponding adjustment to goodwill.
Comprehensive Income	Comprehensive Income Comprehensive income is equal to the net income for all periods presented.
Reclassifications	Reclassifications Certain prior periods’ amounts have been reclassified to conform to the current year presentation. These reclassifications had no impact on net income, total assets and liabilities, stockholders’ equity, or cash flows as previously reported.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2020, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2020-04, Reference Rate Reform: Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The purpose of ASU 2020-04 is to provide optional guidance for a period of time related to accounting for reference rate reform on financial reporting. It is intended to reduce the potential burden of reviewing contract modifications related to discontinued rates. The amendments and expedients in this update are effective, as elected, beginning March 12, 2020 through December 31, 2022 and may be elected by topic. We have yet to elect adoption and the adoption of this guidance is not expected to have a material impact on our consolidated financial statements. In December 2019, the FASB issued an update to existing guidance under the Income Taxes topic of the FASB Accounting Standards Codification (“Codification”). This updated guidance simplifies the accounting for income taxes by removing certain exceptions to the general principles in the Income Taxes topic. This guidance is effective for public companies annual and interim periods beginning after December 15, 2020 with early adoption permitted. The adoption of this guidance did not have a material impact on our consolidated financial statements.
Net Income per Common Share	Net income per common share (“EPS”) is calculated in accordance with the Earnings per Share topic of the Codification, which requires the presentation of basic and diluted EPS. Basic EPS is computed using the weighted average number of common shares outstanding during the period. Diluted EPS is computed using the weighted average number of common shares outstanding during the period, plus the dilutive effect of potential common shares.

Segments

We offer an integrated solution to our customers by providing manufacturing, supply, and installation of a full range of structural and related building products directly to homebuilder customers. We manufacture floor trusses, roof trusses, wall panels, stairs, millwork, windows, and doors. We also provide a full range of construction services. These product and service offerings are distributed across our approximately 550 locations operating in 39 states across the United States. Following the merger with BMC Stock Holdings, Inc. on January 1, 2021, which is discussed in Note 2 to these condensed consolidated financial statements, the Company reorganized the structure of its internal organization.

Given the span and depth of our geographical reach, our locations are organized into three geographical divisions (East, Central, and West), which are also our operating segments. Our operating divisions are organized on a geographical basis to facilitate a disaggregated management of the Company and to respond to the local needs of the customers in the markets we serve. All of our segments have similar customers, products and services, and distribution methods.

Due to these similarities, along with the similar economic profitability achieved across all our operating segments, we aggregate our three operating segments into one reportable segment. Centralized financial and operational oversight, including resource allocation and assessment of performance on an income before income taxes basis, is performed by our CEO, whom we have determined to be our chief operating decision maker (“CODM”).

The accounting policies of our operating segments are consistent with the accounting policies described in the Notes to Consolidated Financial Statements included in our Form 10-K. Since the Company operates in one reportable segment, the primary measures reviewed by the CODM, including revenue, gross margin and income before income taxes, are shown in these condensed consolidated financial statements.

Comprehensive Income

Comprehensive income is equal to the net income for all periods presented.

Recent Accounting Pronouncements

In March 2020, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2020-04, Reference Rate Reform: Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The purpose of ASU 2020-04 is to provide optional guidance for a period of time related to accounting for reference rate reform on financial reporting. It is intended to reduce the potential burden of reviewing contract modifications related to discontinued rates. The amendments and expedients in this update are effective, as elected, beginning March 12, 2020 through December 31, 2022 and may be elected by topic. We have yet to elect adoption and the adoption of this guidance is not expected to have a material impact on our consolidated financial statements.

In December 2019, the FASB issued an update to existing guidance under the Income Taxes topic of the FASB Accounting Standards Codification (“Codification”). This updated guidance simplifies the accounting for income taxes by removing certain exceptions to the general principles in the Income Taxes topic. This guidance is effective for public companies annual and interim periods beginning after December 15, 2020 with early adoption permitted. The adoption of this guidance did not have a material impact on our consolidated financial statements.