Construction Type Plywood

Detailed information for November 2001

The monthly survey, Construction Type Plywood, measures quantities of construction type plywood that are produced and shipped by Canadian manufacturers including distribution of shipments in Canada by province and exports.

Data release - January 25, 2002

• Questionnaire(s) and reporting guide(s)
• Description
• Data sources and methodology
• Data accuracy

Description

As of the December 2007 reference period, this survey has been cancelled.

This survey measures, on a monthly basis, the quantities of construction type plywood that are produced and shipped by Canadian manufacturers and the distribution of shipments in Canada and exports.

The quantities of construction type plywood produced and shipped are used as an indicator of the economic condition of the industry and trends in the construction market, as an input to Canada's Gross Domestic Product and as an input into macro- and micro-economic studies to determine market shares and industry trends. Data are used by the business community, trade associations, federal and provincial departments and international organizations.

Reference period: Month

Collection period: April, July, October, January

Subjects

• Manufacturing
• Wood, paper and printing

Data sources and methodology

Target population

The target population for this survey includes manufacturers in Canada of Construction Type Plywood as defined in the Standard Classification of Goods (SCG) that report this product to the Annual Survey of Manufactures and Logging or ASML (record number 2103). This means that estimates from this survey do not cover the entire universe of Construction Type Plywood producers in Canada because the ASML does not survey all businesses. Instead, the ASML uses administrative data to cover the small and medium-sized establishments. These manufacturers are not part of this monthly survey.

• Additional documentation

Instrument design

The questionnaire for this survey has remained stable over the years, although the format and wording has been modified to maintain its relevance based on feedback from survey respondents and data users.

Sampling

This survey is a census with a cross-sectional design.

This methodology does not apply.

Data sources

Responding to this survey is mandatory.

Data are collected directly from survey respondents.

Monthly data are collected at the end of a quarter for three preceding months, from survey respondents using a mail-out / mail-back process. Data capture and preliminary editing are performed simultaneously to ensure validity of the data. Businesses from whom no response has been received or whose data may contain errors are followed-up by telephone or fax.

Under normal circumstance, data are collected, captured, edited, tabulated and published within 6-8 weeks after the end of every quarter.

View the Questionnaire(s) and reporting guide(s) .

Error detection

Data are examined for inconsistencies and errors using automated edits coupled with analytical review by subject matter analysts. Several checks are performed on the collected data, looking for internal consistency such as totals equaling the sums of the components, comparisons with previous month's and previous year's data and consistency with historical ratios.

Imputation

Contacting the respondent. A comparison with the previous month of the same year. A comparison with the same month of the previous year. Using historical ratios.

Estimation

This methodology type does not apply to this statistical program.

Quality evaluation

1. Observe trends in the industry
2. Comparison with ASM data
3. Compare data with national economy and other manufacturing industries
4. Use data on housing starts and building permits

Disclosure control

Statistics Canada is prohibited by law from releasing any information it collects which could identify any person, business, or organization, unless consent has been given by the respondent or as permitted by the Statistics Act. Various confidentiality rules are applied to all data that are released or published to prevent the publication or disclosure of any information deemed confidential. If necessary, data are suppressed to prevent direct or residual disclosure of identifiable data.

Confidentiality analysis includes the detection of possible direct disclosure, which occurs when the value in a tabulation cell is composed of a few respondents or when the cell is dominated by a few companies.

Data accuracy

All survey data, from whatever source, are subject to error such as errors related to coverage, bad response, processing and non-response.

In the case of the Construction Type Plywood Survey, there is a possibility of under-coverage because the frame is derived from the ASM which lags behind the current survey. However, the risk of under-coverage is minimal because of advance information from the ASM frame, feed-back from MSM and information from other.

Response and processing errors do not easily lend themselves to quantification. Where they are detected, they are corrected. Sometimes the data are revised at a later date. On a monthly basis, late or non-responses are imputed using a variety of methods, the most common being trend analysis.